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FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Malacothrix

12a. Malacothrix saxatilis (Nuttall) Torrey & A. Gray var. implicata (Eastwood) H. M. Hall, Univ. Calif. Publ. Bot. 3: 269. 1907.

Malacothrix implicata Eastwood, Proc. Calif. Acad. Sci., ser. 3, 1: 113. 1898

Plants rhizomatous or with woody caudices. Herbage glabrous or sparsely hairy (arachnose). Stems usually 1, erect, branched distally, proximally woody, relatively densely leafy distally. Cauline leaves: proximal (1–)2-pinnately lobed (lobes linear, apices obtuse or acute), ultimate margins entire or denticulate, apices usually obtuse; distal linear to filiform (sometimes pinnately lobed, lobes linear to filiform). Arrays of heads relatively crowded. Cypselae 1.8–2.2 mm. 2n = 18.

Flowering Feb–Dec. Clay flats or canyon slopes; 50–400 m; Calif.

Variety implicata grows on Anacapa, San Nicolas, San Miguel, Santa Cruz, and Santa Rosa islands. Plants with 1-pinnately parted leaves are present in some populations on Santa Cruz Island.


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