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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Annual, hairy or not, aromatic.
Stem: erect, branched or not.
Leaf: petioled; blade lanceolate to obovate, entire to spiny.
Inflorescence: clusters, head-like, terminal and generally axillary; bracts generally scarious, veins conspicuous, margins spiny.
Flower: calyx 2-lipped, lobes spine-tipped, upper 3 acuminate, lower 2 oblong; corolla funnel-shaped, 2-lipped, white, occasionally tinged lavender or rose, throat cream, upper lip 2-lobed to entire, hooded, lower lip 3-lobed, reflexed; stamens 4, upper 2 reduced, sterile or not; style slender, lower lobe longer.
Fruit: smooth, ovoid.
4 species: s CA-FP. (Greek: thorn mint) [Wagstaff et al. 1998 Plant Syst Evol 209:265–274]
Unabridged references: [Jokerst 1991 Madroño 38:278–286]
1. St hairs short proximally, conspicuously glandular distally; style hairy; upper corolla lip ± = lower, 2-lobed, deeply hooded ..... A. lanceolata
1' St hairs 0 to long, if glandular then inconspicuous; style glabrous; upper corolla lip < lower, entire, shallowly hooded
2. Upper stamens sterile; anthers glabrous; SCo, sw PR ..... A. ilicifolia
2' Upper stamens fertile; anthers hairy; CW, WTR
3. Anthers pink-red; margins of distal leaves not spiny; stem generally unbranched; inflorescence generally terminal; CCo, SnFrB ..... A. duttonii
3' Anthers cream; margins of distal leaves spiny; stem generally branched proximally; inflorescence terminal and axillary; SCoR, WTR ..... A. obovata
4. Hairs of stem and calyx 0 to short, not glandular; bracts round to wider than long, cordate-clasping at base; SCoRO, w&c WTR ..... subsp. cordata
4' Hairs of stem and calyx short or long, some inconspicuously glandular; bracts generally longer than wide, obtuse to truncate at base; SCoRI ..... subsp. obovata
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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