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Calycadenia spicata
(Greene) Greene
Family:
Asteraceae
Spiked Western Rosinweed
FNA
Resources
Robert L. Carr, Gerald D. Carr in Flora of North America (vol. 21)
Plants
20-60 cm; self-incom-patible (herbage gray-green, pleasantly scented).
Stems
simple or branched (branches 1-6, ± ascending, mostly distal to midpoints, rigid), ± densely strigillose-hirsutulous, strigose (hairs longer, glandular distally).
Leaves
mostly alternate, 2-5 cm (often longest at midstems), hispidulous and ± long-hairy (especially proximal margins).
Heads
in glomerate-spiciform arrays (1-3+ per node).
Peduncular bracts
(15-20+, closely investing and concealing heads before flowering) narrowly lanceolate to lance-attenuate (± cylindric distally 1-3+ mm), 3-7 mm (hispidulous, ± bristly and/or pectinate-fimbriate), apices truncate to strongly concave, tack-glands 1 (terminal).
Phyllaries
6-9 mm (± prominently nerved), abaxial faces (often reddish) hispidulous, often long-hairy, especially distally, tack-glands 1-5+.
Paleae
6-9 mm (tack-glands usually 0).
Ray florets
1-5; corollas white, fading reddish, tubes 3-4 mm (± papillate, sometimes with red 'eyes'), laminae 6-11 mm (central lobes smaller than laterals, widest at bases, symmetric, laterals asymmetric, sinuses
1
/3-
2
/3 laminae).
Disc florets
4-11; corollas pinkish, 7-10 mm.
Ray cypselae
ca. 3 mm, smooth, densely appressed-hairy.
Disc cypselae
ca. 3 mm, appressed hairy;
pappi
of 9-16 lanceolate-aristate scales, mostly 3-6 mm.
2
n
= 8.
Flowering summer. Dry, open meadows and hillsides; 50-1400 m; Calif.
Calycadenia spicata
is found in the Sierra Nevada foothills from Butte County to Kern County. Populations are often localized.
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24 Total Images
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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