Psilocarphus brevissimus |
Psilocarphus |
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dwarf woollyheads |
woollyheads |
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Habit | Herbs annual. | |
Stems | erect, spreading, or prostrate, often clump-forming; simple to well branched; branches often in pairs beneath terminal heads, floccose-tomentose. |
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Leaves | basal and cauline, mostly opposite, sometimes alternate distally, becoming bracteate and whorled below heads, linear to ovate, lanceolate, elliptic, oblanceolate, or obovate; margins entire; tips acute or obtuse; surfaces floccose-tomentose, sessile. |
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Inflorescences | heads solitary or in tightly clustered glomerules of 2–4 heads. |
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Involucres | 0. |
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Receptacles | obovoid; surfaces glabrous. |
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Phyllaries | 0. |
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Fruits | obovoid or cylindric, glabrous; pappi 0. |
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Heads | disciform; ± spherical. |
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Outer paleae | wings inflexed. |
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Inner paleae | 0. |
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Outer florets | 20–100+, pistillate, enclosed by paleae; corolla tubes filiform; styles exserted. |
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Inner florets | 2–10, staminate; corollas 4–5- lobed; stamens included. |
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Psilocarphus brevissimus |
Psilocarphus |
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Distribution | ||
Discussion | North America, South America. 5 species; 4 species treated in Flora. |
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Source | Flora of Oregon, volume 2, page 328 Kenton Chambers |
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Sibling taxa | ||
Subordinate taxa | ||
Web links |
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