Flora of North America species comparison

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Stylocline micropoides

desert nest straw, woollyhead fanbract, woollyhead neststraw, woollyhead or desert or woollyhead fanbract
Habit Plants 2–14(–20) cm.
Leaves

acute, mucronate, longest 8–20 mm;

largest capitular leaves (some or all) subulate to lanceolate (widest in proximal 1/3), (7–)11–17 × 1.5–2.5 mm (distalmost mainly 1.5–2 times head heights).
Receptacles

narrowly cylindric, 2–3 mm, heights 5–8 times diams.;

scars ± evenly distributed, ± flat.
Phyllaries

0, vestigial, or falling, ± subulate, mostly 0.1–0.5 mm, unequal.
Heads

in ± paniculiform to cymiform, rarely dichasiform arrays, ± spheric, largest 5–9 mm, thickly lanuginose.
Cypselae

1–1.4 mm, compressed;

pappi: staminate of 2–5(–10) smooth to barbellulate bristles 1.1–2 mm.
Pistillate

paleae: longest 3.4–4.5 mm, winged distally;

wings elliptic to ovate, widest in distal 1/3 of palea lengths;

bodies (except midnerves) chartaceous;

outermost paleae ± saccate.
Functionally

staminate florets 3–6;

ovaries vestigial, 0–0.3 mm;

corollas 1.2–1.9 mm.
2n

= 28.

Stylocline micropoides
Phenology Flowering and fruiting Feb–May(–Aug).
Habitat Relatively stable sandy or gravelly desert soils, often under shrubs, at rock bases
Elevation 70–1600 m (200–5200 ft)
Distribution
from FNA
AZ; CA; NM; NV; TX; UT; Mexico (Baja California, Chihuahua, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Stylocline micropoides occurs throughout warm deserts of the flora area, through the Grand Canyon to southern Utah and up Owens Valley to the White Mountains of California. Sterile and malformed natural hybrids between S. micropoides and Logfia arizonica have been seen. The description of S. micropoides by D. S. Correll and M. C. Johnston (1970) was clearly based on specimens of L. filaginoides; both species occur near El Paso, Texas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 452.
Parent taxa Asteraceae > tribe Gnaphalieae > Stylocline
Sibling taxa
S. citroleum, S. gnaphaloides, S. intertexta, S. masonii, S. psilocarphoides, S. sonorensis
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 84. (1853)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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