Tall Green Milkweed (Asclepias hirtella)
Wednesday, October 14, 2009
Tuesday, October 13, 2009
"Of Woods and Other Things," quotes by Emma Pitcher
Emma Pitcher Quotes:
“Nature writing of necessity involves two delightful occupations: roaming around wild places observing flora and fauna and later poring over relevant books attempting to learn more. In such pleasant ways do naturalists grope toward understanding. Questions always remain – leading to the next foray. Fortunately, the learning never ends.”
“… the nostalgic, somewhat dreamy whistle of an unseen migrating white-throated sparrow on a misty spring morning, a sound that sets blood a stirring in birdwatchers everywhere.”
“…when the flute-like ee oh lay of the wood thrush sounds through the woods, I drop everything to treasure each crystalline note.”
“One of the most astonishing all-time banding records is that of an Arctic tern found dead on the same Maine island where he had been banded thirty-four years earlier. At 25,000 migratory miles flown in a year, this tern weighing four ounces flew 850,000 in its lifetime.”
“A white-throated sparrow, that bird of haunting, ethereal whistles…”
[Ah, yes, my favorite quote of all time from any author]: "...pale satiny yellow breasts and dark velvety smudges around eyes are apparent." [I'm basking in the beauty of the image this evokes... of Cedar Waxwings].
“In winter, tough, scaly fringes grow on toe edges of the feet of ruffed grouse, serving as unique snow shoes. These drop off in spring…. Like willow ptarmigan, these grouse will spend cold winter nights in a snow bank.”
“A family of barred owls lived near me and one often hooted from the big pine just outside my bedroom window. It was a scary but delightful experience to be wakened by that call of the wild just ten feet from my bed.”
[Re: barred owls]: “Invisible ears are cavities in lower sides of the head covered with loose-ribbed feathers that can spread to form funnels.”
[Re: Ruby-Throated Hummingbird]: “… when a thumb-sized ruby-throated leaves for South America in fall, this wee being makes an extraordinary 500-mile nonstop flight across the Gulf of Mexico from the tip of Florida to the coast of Yucatan. Miracle? Yes.”
[Re: Blue Jays]: “When they do migrate, they move by day. On April28, 1981, 2,210 were observed flying eastward along the Lake Michigan shore east of Gary, Indiana.”
[Re: Blue Jays]: “Edward H. Forbush tells of jays not only feeding and guarding an old, partly blind jay, but also leading it to water. Who would have expected compassion from this often aggressive intruder?”
[Re: Black-Capped Chickadees]: In cold weather they become totally round, fluffing feathers to almost twice their normal size, thereby trapping air as insulation. One morning at twenty-five degrees below zero, I saw inflated chickadees covered with hoarfrost crystals, dazzling in the sunlight.”
[Re: Cedar Waxwings]: “Sometimes wing tips contain a bright red wax-like substance visible only at close range. The function of those waxy droplets is unknown.”
The botany section of the book is fast approaching...
Monday, October 12, 2009
Pteris multifida (Pteridaceae)
Friday, October 9, 2009
That's One Odd Fungus
This is Hericium erinaceus, commonly known as Lion's Mane or Tooth Fungus. Edible when young, this mushroom is said to have the texture of octopus or squid. It is often found on fallen logs from fall into the winter; in this case, it was growing from a wound at the base of a Quercus velutina (Black Oak) tree. Another common name for this species is Old Man's Beard.
This last common name is pretty descriptive, I think. See what you think...

Okay, Justin's beard is more of a flocculose tomentum, but still...
Thanks to Dr. Don Ruch for verification of my identification of this fungus.
Thursday, October 8, 2009
Triosteum perfoliatum
I am pretty sure this is Late Horse Gentian, since all of the leaves were perfoliate. Or as S&W says 'middle leaves pandurate, narrowed below the middle, dialated and clasping-connate at the base.' The fruits were very attractive, with their color and geometric arrangement around the stem. I found these in an open woodland in Henry County, Indiana. Triosteum is an herbaceous member of the Honeysuckle (Caprifoliaceae) family.
Monday, October 5, 2009
Snake Identification Help
Sunday, October 4, 2009
Scott's Favorite Shrub: Poison Sumac
Poison Sumac - Rhus vernix
Peloric Orchid
Buckeye and Horse Chestnut
Sunday, September 27, 2009
Finis coronat opus Gentiana!
Prairie Gentian - Gentiana puberulenta
Fringed Gentian - Gentianopsis crinita
Tuesday, September 22, 2009
How's About A Plant Quiz? - We've Got A Winner!
Keith wasn't fooled by my shenanigans. These are the bulblets of the roots of Dicentra cucullaria, Dutchman's Breeches. These bulblets go dormant after the plant goes to fruit, and they remain dormant until fall. The beginning stages of leaves and flower buds are then formed underground. These primordial leaves and flower buds remain dormant until the spring, when they emerge from the mesic forest floor.
There is a spectacular photo of a Dicentra cucullaria plant, including flower, leaves, and root with bulblets on flickr that you can access by clicking here.
Keith mentioned the bulblets of Dicentra canadensis looking similar to those in my quiz but being more round and more yellow-orange. That's exactly right, and a photo of these bulblets is shown above. Some botanists claim to be able to distinguish between these two closely related species based on the color of the undersides of the leaves... if you're ever in doubt, just clear off a little soil and check out the bulblets to tell for sure which species you are dealing with.
Dicentra canadensis
Thursday, September 17, 2009
Fringed Gentians of the Northeastern United States
Sometimes treated as a single genus (Gentiana), the gentians in the northeastern United States are taxonomically split by most authors into three genera: Gentiana, Gentianella, and Gentianopsis. Before I get to the fringed gentians, let's look at how the three genera, in the strict sense, differ.
The photograph above shows an open flower of Gentiana saponaria. The flowers of this species are usually more closed than this, but this photo nicely shows one of the important characteristics of the genus Gentiana when separating it from Gentianella and Gentianopsis. Between the corolla lobes, you will see membranaceous appendages. Gentiana, sensu stricto, has teeth, appendages, or plaits between the corolla lobes, while Gentianella and Gentianopsis lack this character. Also, members of the genus Gentiana are perennial, while those of the genera Gentianella and Gentianopsis are annual or biennial.
Gentianella amarella is shown in the photograph above. As stated previously, members of the genera Gentianella and Gentianopsis lack the appendages between the corolla lobes that are present in members of the genus Gentiana. To distinguish Gentianella from Gentianopsis, look at the corolla lobes. Gentianella does not have fringed corolla lobes, while the corolla lobes of Gentianopsis are fringed along the sides and often around the top.
You can see in the photograph directly above and those below that the corolla lobes are conspicuously fringed, so all of these photos show plants in the genus Gentianopsis. The photograph above shows Gentianopsis crinita, Fringed Gentian. The photograph quality is poor, but you can see that the corolla lobes are fringed across the top and along the sides with long (2-6 mm) linear segments. You can also see broad, lance-ovate leaves (often more than 1 cm wide)characteristic of this species.
Above is a close-up of the flower of Gentianopsis procera, Lesser Fringed Gentian. Notice the long, linear fringes on the sides of the corolla lobes, but the short (less than 2 mm), irregular, broad-based fringes along the top of the corolla lobes. In the photograph below, you can see the vegetative distinguishing character between the two species of Gentianopsis. In Gentianopsis procera, the upper leaves are linear or very narrowly lanceolate (often less than 1 cm wide).
Wednesday, September 9, 2009
Virginia Creeper / Woodbine
The plant in the photograph above is Parthenocissus quinquefolia, while that in the photograph below is P. inserta (which is treated as a synonym of P. vitacea by some authors, though the nomenclature of these two is quite confusing).
Looking at the undersides of the leaflets, those of P. quinquefolia (above) are almost always pubescent, while those of P. inserta (below) are more often glabrous. There is, however, a rare hirtellous form of P. inserta known as P. inserta f. dubia.
Another part of the plant to check is the junction of the petiolules with the petiole.
In P. quinquefolia (above), this junction is also pubescent; in P. inserta (below), the junction is glabrous.
Growth habit is yet another way to distinguish between these two similar species.
Parthenocissus quinquefolia (above) is often high climbing, but it can also be found growing at ground level. Parthenocissus inserta (below), however, sprawls over the ground, structures, or other vegetation.
The reason for this difference in habit is all in the tendrils...

The tendrils of P. quinquefolia (above) have several branches that end in dilated adhesive discs, which are used to attach to vegetation or structures, allowing the plant to climb. Those of P. inserta (below), however, have few branches and no adhesive discs, and it therefore does not have the ability to climb the way that P. quinquefolia does.

Finally, if you are lucky enough to have flowers or fruit, the distinction between these two species is simple. However, as Swink and Wilhelm point out in Plants of the Chicago Region, P. quinquefolia rarely produces fruit, while P. inserta produces fruit routinely.
As you can see in the photograph above, the inflorescence of P. quinquefolia has a distinct central axis, with 25-200 flowers/fruit in panicled groups of cymes. The inflorescence of P. inserta (below), however, is dichotomously branched and therefore does not have a central axis. It most often has 10-60 flowers/fruit per inflorescence. The fruit of P. quinquefolia are a bit smaller in diameter than those of P. inserta, as well.
It's as easy as that. There is no longer an excuse for lumping all members of the Vitaceae with five palmate leaflets into P. quinquefolia. Now that you can distinguish between mature plants of Parthenocissus, be sure to check The Vasculum to see how to determine the difference between Parthenocissus and Vitis in the cotyledon stage.
Tuesday, September 8, 2009
Another Plant Quiz
Saturday, September 5, 2009
Plant Quiz - Elephantopus carolinianus
Habitat: old field, shady, lower on a slope, SE Indiana (Fayette County)
Any help?
Answer - Elephantopus carolinianus. Good job, Scott. I had never seen this flower before. Apparently, the florets are considered to be disc flowers, not ray flowers.
Gentian Feevah!
With the sudden interest in gentians (what timing!); here is Gentiana linearis photographed in southern Vermont (8/18/09), where it is considered rare. First time seeing it: it is found only in the U.P. in Michigan (4 counties as of this summer thanks to the illustrious Bradford Slaughter). Looks a heck of a lot like G. andrewsii (incidentally also rare in VT) to me, the main difference in G&C's key being the leaves and are not "scabrous-ciliolate" (at least not at 16X).
Friday, September 4, 2009
Gentiana rubricaulis
Gentiana rubricaulis differs from similar species such as G. andrewsii and G. saponaria in having smooth-margined leaves and calyx lobes (as opposed to leaves and calyx lobes with ciliate margins). In addition, the plaits between the corolla lobes in G. andrewsii are longer than the lobes, while those in G. rubricaulis are shorter than the corolla lobes. Another important feature used to distinguish G. rubricaulis from similar species is that the the calyces and lower portion of the flowers are usually sunken within the involucral leaves. Finally, the leaves of this gentian are a lighter green color than those of most other members of the genus.