Achyrachaena mollis

Schauer

Index Seminum (Bratislava) 1837: [3]. 1837

Common names: Blow-wives
Treatment appears in FNA Volume 21. Treatment on page 259.
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Illustrator: Barbara Alongi
Leaf blades 2–15 cm × 1–7+ mm. Phyllaries 10–20 mm. Ray corollas inconspicuous, laminae usually erect, sometimes spreading, 4–7 mm. Disc corollas 6–10 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.

Phenology: Flowering Mar–Jun.
Habitat: Grassy, often wet sites, usually with clay-rich soils
Elevation: 0–900 m

Distribution

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Calif., Oreg., Mexico (Baja California).

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.

References

None.

Lower Taxa

No lower taxa listed.