Jepson Herbarium
		University of California, Berkeley

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Shrub, tree, spiny.
Stem: branched near base [or trunk 1, thick, fleshy].
Leaf: simple, alternate, small, ± fleshy, glabrous, generally produced after rains, of 2 kinds: 1° on long- shoots, subtended by decurrent ridge on stem, blade generally early- deciduous, petiole persisting as spine; 2° clustered on short- shoot in axils of 1°, ± persistent, not spine-forming.
Inflorescence: spike, raceme, or panicle, axillary or terminal; flowers many.
Flower: sepals 5, unequal, overlapping, ± scarious, persistent; corolla bright red [yellow], tube cylindric, lobes 5, overlapping, spreading; stamens 10–20+, in 1 or ± 2 whorls, filaments free; pistil 1, ovary superior, 3(4)-chambered at base, placenta axile at base, parietal above, ovules ± 3–6 per chamber, style 3(4)-lobed.
Fruit: capsule, loculicidal.
Seed: elliptic, angled or winged.
1 genus (including Idria), 11 species: sw US, Mex. [Schultheis & Baldwin 1999 Amer J Bot 86:578–589] —Scientific Editor: Thomas J. Rosatti.

(P.E. Fouquier, Parisian medical professor, 1776–1850)

Stem: erect to outwardly arching or ascending, 6–100, 2–10 m, generally < 6 cm diam, cane-like, leafless most of yr; bark gray with darker furrows; spines 1–4 cm.
Leaf: 1° 1–5 cm, petiole 1–2.5 cm; 2° 2–6 per cluster, 1–2 cm, 4–9 mm wide, petiole 2–8 mm, blade spoon-shaped to obovate, tip rounded to notched.
Inflorescence: panicle, generally 10–20 cm, widely to narrowly conic.
Flower: corolla 1.8–2.5 cm; filaments each arising from hairy, ± 5 mm sheath.
Fruit: ± 2 cm.
2n=24. Dry, generally rocky soils; < 700 m. Sonoran Desert;

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; 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 have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.