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Malacothrix indecora
Greene
Family:
Asteraceae
Santa Cruz Island Desert-Dandelion,
more...
Santa Cruz Island malacothrix
Images
not available
FNA
Resources
W. S. Davis in Flora of North America (vol. 19, 20 and 21)
Annuals,
2-12(-45) cm.
Stems
usually 1, erect or ± prostrate, usually ± branched proximally (often forming mats, usually leafy throughout), glabrous.
Cauline leaves:
proximal obovate to spatulate, usually pinnately lobed (lobes 1-3+ pairs, nearly equal, apices obtuse), usually fleshy, ultimate margins entire, faces glabrous; distal not reduced (similar to others).
Calyculi
of 8-13+, lance-deltate to lanceolate bractlets (sometimes intergrading with phyllaries), hyaline margins 0.05-0.2 mm wide.
Involucres
± campanulate, 6-8 × 2-6+ mm.
Phyllaries
13-22+ in 2-3 series, (often red-tinged) oblong to lanceolate, hyaline margins 0.05-0.2 mm wide, faces glabrous.
Receptacles
glabrous.
Florets
18-76; corollas medium yellow, 4-8 mm; outer ligules exserted 1-4 mm.
Cypselae
± prismatic, 1.2-1.5 mm, ribs extending to apices, 5 more prominent than others;
persistent pappi
0.
Pollen
70-100% 3-porate.
2
n
= 14.
Flowering Apr-Jul. Shallow soils of ocean bluffs, open rocky areas; of conservation concern; 0-30 m; Calif.
Malacothrix indecora
is found on San Miguel, Santa Cruz, and Santa Rosa islands.
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