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Asteraceae
Pterocaulon

not marked as a favorite taxon Pterocaulon pycnostachyum (Michaux) Elliott. Common name: Blackroot, Pineland Wingstem. Phenology: Apr-Jun. Habitat: Longleaf pine sandhills, pine flatwoods. Distribution: Se. NC south to s. FL and west to s. AL.

Glossary (beta!)

Origin/Endemic status: Endemic

Other Comments: This species can have surprisingly robust and lignified tubers in frequently burned pine savannas and dry prairies.

Synonymy ⓘ: = Fl7, FNA19, GW2, K4, POWO, RAB, SE1, WH3, Arriagada (1998), Cabrera & Ragonese (1978); = Pterocaulon undulatum (Walter) C.Mohr — S; ~ Chaenolobus undulatus (Walter) Small; Conyza pycnostachya Michaux. Basionym: Conyza pycnostachya Michx. 1803

Links to other floras: = Pterocaulon pycnostachyum - FNA19

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU

Heliophily ⓘ: 8

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image #1 of Pterocaulon pycnostachyum© Bruce Sorrie | Original Image ⭷
image #2 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷
image #3 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷
image #4 of Pterocaulon pycnostachyum© Keith Bradley | Original Image ⭷
image #5 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷
image #6 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷
image #7 of Pterocaulon pycnostachyum© Jay Horn source | Original Image ⭷
image #9 of Pterocaulon pycnostachyum© Aidan Campos source | Original Image ⭷
image #10 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷
image #11 of Pterocaulon pycnostachyum© Scott Ward
image #12 of Pterocaulon pycnostachyum© Scott Ward | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect to leaning perennial from large, black roots found in sandhills, dry pinelands and pine flatwoods.

Stems: Stems unbranched, prominently winged and covered with white or rust-colored hairs.

Leaves: Leaves alternate, sessile with leaf bases continuing down stem as wings, elliptic or lance-shaped, to 4 1/3 in. long, dark green and nearly smooth above, white and densely hairy beneath.

Inforescence:

Flowers: Composite flowers (heads) densely packed in a terminal spike (1-3 in. long), which may nod; heads less than 1/4 in. tall; consisting of tiny, white (pink-tinged), tubular disk florets and protruding styles. Tiny greenish-white bracts tightly surround the cylindric base of each head.

Fruits:

Comments:

Height: 8-30 in.

plant sale text:

bloom table text:

description: Erect to leaning perennial from large, black roots found in sandhills, dry pinelands and pine flatwoods.

stems: Stems unbranched, prominently winged and covered with white or rust-colored hairs.

leaves: Leaves alternate, sessile with leaf bases continuing down stem as wings, elliptic or lance-shaped, to 4 1/3 in. long, dark green and nearly smooth above, white and densely hairy beneath.

inflorescence:

flowers: Composite flowers (heads) densely packed in a terminal spike (1-3 in. long), which may nod; heads less than 1/4 in. tall; consisting of tiny, white (pink-tinged), tubular disk florets and protruding styles. Tiny greenish-white bracts tightly surround the cylindric base of each head.

fruits:

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cultural notes:

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