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FNA | Family List | FNA Vol. 6 | Malvaceae | Malacothamnus

8. Malacothamnus abbottii (Eastwood) Kearney, Leafl. W. Bot. 6: 129. 1951.
[C E]

Abbott’s bushmallow Abbott’s bushmallow

Malvastrum abbottii Eastwood, Leafl. W. Bot. 1: 215. 1936

Shrubs, to 1.5 m, branches slender, flexuous, indument complex: white, dense, sublepidote, hairs simple, fine, not shaggy, or stellate, sessile, many-armed. Leaf blades ovate, unlobed or 3-lobed, 3–6.5 cm, thin, surfaces: copiously white-stellate, basal sinus open, not overlapping. Inflorescences open-paniculate, flowers solitary or in pedunculate clusters, loose, not subtended by conspicuous bracts, flowers 3 or 4 per node; involucellar bractlets lanceolate, 5–8 × 1–1.5 mm, 1/2–3/4 calyx length. Flowers: calyx slightly winged in bud, 9–11 mm, lobes ovate-acuminate, 6–7.5 × 2.5–3.5 mm, ca. 2 times as long as wide, 2–3 times tube length, apex acuminate, densely stellate; petals pale pink, 1.5–2 cm. Mericarps to 3 mm.

Flowering Oct. Stream banks, open chaparral; of conservation concern; 100–500 m; Calif.

Malacothamnus abbottii was once considered to be extinct. It is known from three localities in southern Monterey County.


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