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Erigeron calvus
Coville
Family:
Asteraceae
Bald Daisy
Images
not available
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Biennials or short-lived perennials,
10-14 cm; taprooted, without well-developed caudices.
Stems
ascending, hirsute, minutely glandular.
Leaves
basal (persistent) and cauline (petioles prominently ciliate, at least on proximal portions, hairs spreading, thick-based); basal blades oblong-spatulate to obovate-spatulate, 30-50 × 4-6 mm, cauline abruptly reduced distally, margins entire, faces hirsuto-villous, minutely glandular.
Heads
(disciform) 1-3 (usually from branches proximal to midstems).
Involucres
ca. 5 × 13-14 mm.
Phyllaries
in 2-3 series, coarsely hirsute, minutely glandular.
Ray (pistillate) florets
ca. 50-100; corollas usually tubular, lacking laminae, or laminae shorter than involucres.
Disc corollas
4-5.1 mm (throats white-indurate, somewhat inflated, glabrate).
Cypselae
1.5-1.6 mm (immature), 2-nerved, faces sparsely strigose (carpopodia whitish);
pappi:
outer of setae, inner of 15-20 bristles.
Flowering Apr-May. Sagebrush and desert shrub; of conservation concern; ca. 1200 m; Calif.
Erigeron calvus
is known only from the type collection.
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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