Flora of North America species comparison

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Pentachaeta alsinoides

tiny pentachaeta, tiny pygmy daisy
Habit Plants 3–14 cm.
Stems

diffusely branched.
Leaf

blades linear to filiform, 15–35 × 0.5–1 mm.
Disc florets

(3–)4(–5);

corollas yellow, often reddish-tipped, linear-tubular, not contracted at lobes, lobes 3.
Phyllaries

in 2 series, elliptic, glabrous or sparsely hirsuto-pilose.
Invo

-lucres narrowly obconic.
Ray

(or pistillate) florets (4–)5(–6);

corollas yellow to red-tipped, laminae 0–1 mm.
Pappi

of 3(–4) bristles, weakly dilated at bases.
2n

= 18.

Pentachaeta alsinoides
Phenology Flowering Apr–May.
Habitat Grassy areas
Elevation 15–400 m (0–1300 ft)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Pentachaeta alsinoides is easily recognized by its relatively small (2.6–3 mm), disciform heads and reddish, linear-tubular, 3-lobed disc corollas. The anthers of the disc florets often are sterile.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 47.
Parent taxa Asteraceae > tribe Astereae > Pentachaeta
Sibling taxa
P. aurea, P. bellidiflora, P. exilis, P. fragilis, P. lyonii
Synonyms Chaetopappa alsinoides
Name authority Greene: Bull. Torrey Bot. Club 9: 109. (1882)
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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