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J. Chris Pires, except as noted

Perennial herb from corm, outer coat fibrous [membranous]. Leaf: basal, 1–10, linear to narrow-lanceolate. Inflorescence: scapose, generally umbel-like; scape erect, generally 1(2), cylindric, generally rigid, occasionally wavy to twining; flower bracts 2–4[10], not enclosing flower buds. Flower: perianth parts 6 in 2 petal-like whorls, free or ± fused below into tube; staminodes 0 or 3; stamens 3 or 6, free or fused to perianth, occasionally appendaged; ovary superior, chambers 3, ovules 2–several per chamber. Fruit: capsule, loculicidal.
10–11 genera, 60–70 species: western North America. [Pires & Sytsma 2002 Amer J Bot 89:1342–1359] —Scientific Editors: Dale W. McNeal, Thomas J. Rosatti.

Key to Themidaceae

Corm ± spheric, daughter corms 1–3 on stalks. Leaf: 1–8, keeled, entire, withered in flower. Inflorescence: scape stiff, straight, cylindric, minute-scabrous; bracts 2–4, not enclosing flower buds, scarious in flower; pedicels ray-like, ascending to erect, jointed; flowers 10–35+. Flower: perianth parts ± free at base, not forming obvious tube, golden-yellow, striped ± brown or green, lobes ascending to spreading; stamens 6, filaments ± 6 mm, parallel to style, dilated bases fused to form nectar cup with shallow to awned cusps, or leaning away from style, leaving dilated bases separated, not forming cup, distally thread-like, anthers attached near base; style ± 5 mm, thread- or club-like, persistent, stigma 3-lobed. Fruit: 5–6 mm, ± spheric, 3-angled, sessile. Seed: angled, wrinkled, black-crusted.
3 species: central and southern California, northern Baja California. (H.G. Bloomer, early San Francisco botanist)
Unabridged etymology: (Dr. H.G. Bloomer, early San Francisco botanist, one of three founders of the California Academy of Sciences)
Unabridged references: [Hoover 1955 Herbertia 11:13–23; Ingram 1953 Madroño 12:19–27]

Key to Bloomeria

B. clevelandii S. Watson SAN DIEGO GOLDENSTAR
Leaf: 2–8, 6–15 cm, 1–3 mm wide. Inflorescence: scape 15–70 cm; pedicels 0.5–6.5 cm. Flower: perianth lobes abruptly spreading at base, 5–10 mm, yellow with green midvein; filaments 3–5 mm, leaning away from style, cup 0, anthers 0.4–1 mm; ovary 2–3 mm, style 2–3 mm, <= ovary.
n=7. Coastal scrub, mesa grassland; < 100 m. s South Coast (sw San Diego Co.); northern Baja California. [Muilla clevelandii (S. Watson) Hoover] May [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 26 2015
Citation for this treatment: [Author of taxon treatment] 2013. Bloomeria, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 26 2015

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click for enlargement Bloomeria clevelandii
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2005 Larry Sward

Geographic subdivisions indicated for the distribution of Bloomeria clevelandii Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.