Flora of North America species comparison

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Achyrachaena mollis

blow-wives
Leaf

blades 2–15 cm × 1–7+ mm.
Ray corollas

inconspicuous, laminae usually erect, sometimes spreading, 4–7 mm.
Disc corollas

6–10 mm.
Phyllaries

10–20 mm.
Cypselae

black, 4.5–9 mm;

pappi (disc) of 5 outer scales 3–9 mm plus 5 inner scales 6–13 mm.
2n

= 16.

Achyrachaena mollis
Phenology Flowering Mar–Jun.
Habitat Grassy, often wet sites, usually with clay-rich soils
Elevation 0–900 m (0–3000 ft)
Distribution
from FNA
CA; OR; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Discussion

Achyrachaena mollis grows in low-elevation grasslands, savannas, and open woodlands throughout the California Floristic Province and occurs with vernal tarweeds of the genus Layia. During flowering, pappus scales of each disc floret form cylinders (imparting a honeycomb-like appearance to apices of heads); they are widely spread in fruiting heads. The species is self-compatible and is not known to hybridize with other tarweeds.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 259.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Madiinae > Achyrachaena
Name authority Schauer: Index Seminum (Bratislava) 1837: [3]. (1837)
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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