|University of California, Berkeley|
Key to families | Table of families and genera
1. Shrub, densely mounded; branches many, spreading to ascending, twigs short, stout, becoming thorny; corolla white, tinged red or purple; fruit ± indehiscent ..... M. spinescens
2. Calyx tube in flower generally > 1.5 mm; corolla tube > 7 mm ..... var. mohavensis
2' Calyx tube in flower generally < 1.5 mm; corolla tube < 5 mm ..... var. spinescens
1' Perennial herb to subshrub, broom-like; branches 0–few, ascending to erect, slender; corolla yellow; fruit circumscissile ..... M. scabra
3. Plants generally > 30 cm, ± glabrous; leaves proximal to inflorescence > 5 × width, generally linear or lance-linear; internodes proximal to inflorescence generally > 1.5 × subtending leaves; calyx lobes 5–7(10) ..... var. glabrescens
3' Plants generally < 28 cm, ± scabrous, often densely so; leaves proximal to inflorescence < 4 × width, generally narrowly lanceolate or oblanceolate; internodes proximal to inflorescence generally < 1.5 × subtending leaves; calyx lobes (8)9–10(12) ..... var. scabra
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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