OregonFlora: Psilocarphus brevissimus vs. Psilocarphus tenellus

	Psilocarphus brevissimus	Psilocarphus tenellus
	dwarf woollyheads	slender woollyheads
Habit		Plants 2–8 cm.
Stems		usually much branched throughout, prostrate; clump-forming or spreading; up to 15 cm.
Cauline leaves		3–12 mm, oblong or oblanceolate to obovate or elliptic, mostly 1.5–6 × as long as wide.
Receptacles		unlobed.
Fruits		obovoid, 0.6–1.2 mm, brown.
Heads		3–5.5 mm in diameter.
Outer paleae		25–50, 1.2–2.5 mm.
Inner corollas		0.8–1.5 mm; lobes usually 5.

	Psilocarphus brevissimus	Psilocarphus tenellus
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion		Grasslands, beaches, riverbanks, sandbars, roadsides, disturbed areas. Flowering May–Aug. 0–1300 m. CR, ECas, Est, Owy, Sisk, WV. CA, ID, WA; north to British Columbia, south to Mexico. Native.
Source		Flora of Oregon, volume 2, page 329 Kenton Chambers
Sibling taxa	P. elatior, P. oregonus, P. tenellus	P. brevissimus, P. elatior, P. oregonus
Subordinate taxa	P. brevissimus var. brevissimus
Synonyms		Psilocarphus tenellus var. tenellus
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Psilocarphus brevissimus

Psilocarphus tenellus

dwarf woollyheads

slender woollyheads

Habit

Plants 2–8 cm.

Stems

usually much branched throughout, prostrate; clump-forming or spreading; up to 15 cm.

Cauline leaves

3–12 mm, oblong or oblanceolate to obovate or elliptic, mostly 1.5–6 × as long as wide.

Receptacles

unlobed.

Fruits

obovoid, 0.6–1.2 mm, brown.

Heads

3–5.5 mm in diameter.

Outer paleae

25–50, 1.2–2.5 mm.

Inner corollas

0.8–1.5 mm;

lobes usually 5.

Psilocarphus brevissimus

Psilocarphus tenellus

Distribution

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Grasslands, beaches, riverbanks, sandbars, roadsides, disturbed areas. Flowering May–Aug. 0–1300 m. CR, ECas, Est, Owy, Sisk, WV. CA, ID, WA; north to British Columbia, south to Mexico. Native.

Source

Flora of Oregon, volume 2, page 329
Kenton Chambers

Sibling taxa

P. elatior, P. oregonus, P. tenellus

P. brevissimus, P. elatior, P. oregonus

Subordinate taxa

P. brevissimus var. brevissimus

Synonyms

Psilocarphus tenellus var. tenellus

Web links