Photos / Sounds
What
Common Jewelweed (Impatiens capensis)Observer
sfulton93Description
Petals are orange-yellow and spotted. Two sepals are yellowish and membranous, and the third sepal is large, conical, spurred, and petal-like. The capsules are explosively dehiscent. The flower fell off in transit.
Photos / Sounds
What
White Grass (Leersia virginica)Observer
sfulton93Description
A grass with sharp, recurved spines on the leaf margins. The base of the inflorescence is enclosed in the sheath. The sheath is mostly smooth both above and below the joint.
Photos / Sounds
What
Blue Waxweed (Cuphea viscosissima)Observer
sfulton93Description
A short plant growing in dense clusters. The plant has six purple, distinctly separate petals at the end of a long hypanthium. The plant is covered in sticky hairs.
Photos / Sounds
What
Canada Clearweed (Pilea pumila)Observer
sfulton93Description
Leaves are broad with distinct teeth and palmate venation. Small flowers are clustered in axillary panicles. The plant lacks stinging trichomes.
Photos / Sounds
What
Common Boneset (Eupatorium perfoliatum)Observer
sfulton93Description
The plant has heads of white disk flowers, a pubescent stem, and perfoliate leaves. The phyllaries are strongly imbricate.
Photos / Sounds
What
Soft Rush (Juncus effusus)Observer
sfulton93Description
Growing in clumps. The plant has a soft stem and an inflorescence of numerous small, brown, tulip-like flowers appearing to emerge from the stem.
Photos / Sounds
What
Garden Stonecrop (Hylotelephium erythrostictum)Observer
sfulton93Description
The plant is succulent with a cymose inflorescence of pale pink flowers. Because this plant typically grows on wooded cliffs and this specimen was found growing by an urban pond, it was probably planted.
Photos / Sounds
What
Blue Mistflower (Conoclinium coelestinum)Observer
sfulton93Description
Heads of small, purple-blue disk flowers on conic receptacles. The leaves are opposite and toothed.
Photos / Sounds
What
Rough Barnyard Grass (Echinochloa muricata)Observer
sfulton93Description
Grass with dorsally compressed spikelets and hardened fertile lemmas and paleas. The florets are green and reddish. Distinct awns and bristles. No ligules. Apexes of fertile lemmas taper to tip, and some bristles have pustulate bases.
Photos / Sounds
What
Rough Cocklebur (Xanthium strumarium)Observer
sfulton93Description
Herbaceous plant with purple-red stems and petioles. Spiky, bur-like fruits are clustered in the leaf axils.
Photos / Sounds
What
Dotted Knotweed (Persicaria punctata)Observer
sfulton93Description
Inflorescence a spike of small, white flowers with five tepals. The flowers are not closely overlapping, and the lower flowers are more distant. The plant has ciliate ocreae. Distinct peppery taste. Glandular dots are present on the calyx.
Photos / Sounds
What
Swamp Smartweed (Persicaria hydropiperoides)Observer
sfulton93Description
Inflorescence a spike of small white and pink flowers with 5 tepals. No peppery taste. No glandular dots on the calyx. Ocreolae cilia of less than 2 mm and ocreae cilia of 2 to 10 mm. Leaves up to 15 mm wide. Appressed trichomes on the outer ocreae surface.
Photos / Sounds
What
Great Blue Lobelia (Lobelia siphilitica)Observer
sfulton93Description
Herbaceous plant with zygomorphic, bilabiate, deep blue flowers. The calyx has noticeable auricles.
Photos / Sounds
What
Straw-colored Flatsedge (Cyperus strigosus)Observer
sfulton93Description
Small sedge with a smooth, slightly angled stem and terminal clusters of golden spikelets. The plant has trigonous achenes and trifid styles. Spikelet scales are approximately 3.5 mm long.
Photos / Sounds
What
Devil's Beggarticks (Bidens frondosa)Observer
sfulton93Description
Herbaceous plant with dense heads of yellow-orange disk flowers subtended by two series of phyllaries; outer series consisting of eight long, leaf-like phyllaries with ciliate margins. The leaves are 1-pinnately compound and are oppositely arranged.
