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Calycadenia spicata
Spiked western rosinweed is a small annual wildflower native to grasslands of central California, grown mainly by native plant enthusiasts. It is not a common garden plant, and it is grown from seed in open, sunny, dry conditions.
Calycadenia spicata is a species of flowering plant in the family Asteraceae known by the common name spiked western rosinweed. It is endemic to central California, where is a common grassland plant in the Central Valley and adjacent Sierra Nevada foothills from Butte County to Kern County.
Calycadenia spicata is an annual herb producing a hairy, glandular stem 20 to 60 centimeters (8-24 inches) tall. The leaves are linear in shape and up to five centimeters (two inches) long, sometimes longest toward the middle of the stem. The inflorescence bears one or more flower heads at separate nodes, surrounded by short bracts tipped with resin glands. The glandular and hairy flower heads have a center of several disc florets as well as whitish, triple-lobed ray florets. The fruit is an achene; those arising from the disc florets have a pappus of scales.
Fremont's western rosinweed · Hoover's western rosinweed · Small-flowered calycadenia · Soft western rosinweed · Sticky western rosinweed · Butte County western rosinweed · Smallflower western rosinweed · Oregon western rosinweed · Dwarf western rosinweed · Western rosinweed
Text excerpted from the Wikipedia article Calycadenia spicata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
