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THEMIDACEAE BRODIAEA FAMILY

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

ANDROSTEPHIUM
Corm spheric. Leaf: basal, linear, channeled. Inflorescence: scape straight; bracts 3, lanceolate; pedicels not jointed, erect. Flower: perianth parts 6 in 2 petal-like whorls, tube funnel-shaped, lobes narrow-oblong; stamens 6, filaments fused into nectar tube with erect toothed appendages forming crown between anthers, anthers attached near base; style persistent, stigma small, 3-lobed. Fruit: ± spheric, obtuse-3-angled. Seed: several per chamber, flat, black-crusted.
3 species: western United States, northern Mexico. (Greek: stamen crown, for appendages of fused filaments)

A. breviflorum S. Watson SMALL-FLOWERED ANDROSTEPHIUM
NATIVE
Leaf: 10–30 cm, 1.5–2 mm wide. Inflorescence: scape 10–35 cm, scabrous near base; pedicels 15–30 mm; flowers 3–12. Flower: perianth white to light violet drying yellow-brown, tube 5–7 mm, lobes 10–14 mm; filaments 8–10 mm, tube ± funnel-shaped, appendages ± 2 mm, anthers 2.5–3 mm. Fruit: 10–15 mm, deeply 3-lobed.
Open desert scrub, sandy to rocky soil; 100–1600 m. s Mojave Desert, n Sonoran Desert; to western Colorado. Mar–Jun [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 18 2014
Citation for this treatment: [Author of taxon treatment] 2012. Androstephium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13330, accessed on Apr 18 2014

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click for enlargement Androstephium breviflorum
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© 2010 Duncan S. Bell

Bioregions in which Androstephium breviflorum occurs 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.
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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.