TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
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Dale W. McNeal, except as specified

Perennial to trees, from membranous bulb, fibrous corm, scaly rhizome, or erect caudex
Stem generally underground
Leaves generally basal, often withering early, alternate, generally ± linear
Inflorescence various, generally bracted
Flower generally bisexual, generally radial; perianth often showy, segments generally 6 in two petal-like whorls (outer sometimes sepal-like), free or fused at base; stamens 6 (or 3 + generally 3 ± petal-like staminodes), filaments sometimes attached to perianth or fused into a tube or crown; ovary superior or inferior, chambers 3, placentas generally axile, style generally 1, stigmas generally 3
Fruit: generally capsule, loculicidal or septicidal (berry or nut)
Genera in family: ± 300 genera, 4600 species: especially ± dry temp and subtropical; many cultivated for ornamental or food; some TOXIC. Here includes genera sometimes treated in Agavaceae, Amaryllidaceae, and other families.


Glenn Keator

Perennial from spheric, fibrous-coated corm; cormlets generally sessile
Leaves basal, 2–5, narrowly lanceolate, generally keeled, entire, glabrous, sometimes withered by flower
Inflorescence umbel- or raceme-like, generally dense (pedicels < flower); axis generally curved to twining, cylindric; bracts 2–4, ± papery
Flower: perianth tube cylindric to bell-shaped, lobes 6 in 2 petal-like whorls; staminodes generally 0 (stamen-like in 1 sp.); stamens 3 (6 in 1 sp.), filaments fused to perianth and into a crown-like tube, free filaments generally ± 0, anthers attached at base; style 1, stigma 3-lobed
Fruit: capsule, generally not stalked, generally ovoid, 3-angled, loculicidal
Seeds sharply angled, black
Chromosomes: n=9
Species in genus: 5 species: w US, especially n CA
Etymology: (Greek: toothed crown, from stamen appendages)
Reference: [Keator 1992 Four Seasons 9:24–39]


D. ida-maia (A.W. Wood) Greene


Leaves 3–5, 30–50 cm, glaucous, keeled
Inflorescence umbel-like, open; axis < 100 cm; bracts lanceolate, reddish; pedicels 1–5 cm; flowers 6–20 (nodding in flower, erect in fruit)
Flower: perianth tube 20–27 mm, cylindric, red, with 6 sac-like swellings on lower 1/3, lobes recurved (erect in fruit), 7–9 mm, green; crown segments erect, 3–4 mm, entire, rounded, inrolled, whitish, anthers 6–8 mm; ovary narrowly ovoid, stalk 6 mm, style 15–20 mm
Chromosomes: n=24
Ecology: Forest edges, grassland near coast
Elevation: 30–2000 m.
Bioregional distribution: North Coast, Klamath Ranges, n&c North Coast Ranges
Distribution outside California: s Oregon
Synonyms: Brodiaea i.-m. (A. W. Wood) Greene
Sporadic hybrids with D. congestum or D. multiflorum, with flowers ± horizontal, perianth tube 14–17 mm and rose-purple have been called D. venustum (Greene) Hoover, rose firecracker flower, or Brodiaea v. (Greene) Greene
Horticultural information: DRN, DRY, part SHD: 4, 5, 6, 7, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

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