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Nancy J. Vivrette, John Bleck & Wayne R. Ferren, Jr., family description, key to genera

Annual, perennial herb, shrub, generally fleshy. Stem: underground to erect; root fibrous or tuberous. Leaf: generally simple, entire, flat, cylindric, 3-angled, or scale-like, generally cauline, generally opposite; stipules generally 0; blade papillate, pubescent, or generally glabrous, often glaucous. Inflorescence: cyme or 1-flowered, generally terminal. Flower: generally bisexual, radial; hypanthium present; sepals (3)5(8), often unequal; petals 0 or many in several whorls, free or fused at base, linear; stamens 1–many, free or fused in groups, outer often petal-like; nectary a ring or separate glands; pistil 1, ovary superior to inferior, chambers 1–20, placentas generally parietal, styles 0–20. Fruit: berry, nut, or generally capsule, opening by flaps or circumscissile. Seed: 1–many per chamber, generally ovoid, arilled or not.
130 genera, 2500 species: generally subtropics, especially southern Africa; many cultivated. [Hartmann 2002 Illus Handbook Succulent Plants Aizoaceae A-E (Vol 1) and F-Z (Vol 2). Springer; Vivrette et al. 2003 FNANM 4:75–91] Galenia pubescens (Eckl. & Zeyh.) Druce, a waif, may be naturalizing in southern California. —Scientific Editors: Bruce G. Baldwin, Thomas J. Rosatti.
Unabridged references: [Ferren et al. 1981 Madroño 28:80–85; Smith 1998 Mesembs of the World. Briza.]
Unabridged note: Disphyma crassifolium (L.) L. Bolus (ovary glands convex, minute-crenate; stigmas dense-plumose; fruit chambers 5; seeds ovate, ± smooth), of tribe Ruschieae, an historical waif in California; Lampranthus coccineus (Haw.) N.E. Br.: (ovary glands fused; fruit chambers 5; seeds pear-shaped, ± black, rough), of Ruschieae, an historical waif or urban weed in California.

Key to Aizoaceae


John Bleck

Perennial herb, shrub, papillate. Stem: prostrate [to erect], generally rough. Leaf: opposite, 4-ranked, [1]1.2–1.4[2.5] cm, 2.5 mm wide, linear, triangular to round in ×-section, often papillate. Inflorescence: flowers 1 [few in cyme]. Flower: 1.8[3.5] cm diam; sepals generally 5, equal; petals in 1–2 whorls, free; outer stamens sterile, inner erect; nectaries separate; ovary ± inferior, top flat or convex, chambers 4–6, placentas parietal, stigmas 4–6, thread-like. Fruit: capsule, valves not separating; flaps present. Seed: light brown, rough.
± 105 species: southern Africa. (Greek: dew flower) Drosanthemum hispidum (L.) Schwantes (indicated as a waif in California in TJM (1993)) occasionally collected in California but only from cultivation.
Unabridged note: Drosanthemum hispidum (L.) Schwantes (indicated as a waif in California in TJM (1993)), Drosanthemum speciosum (Haw.) Schwantes occasionally collected in California but only from cultivation.

D. floribundum (Haw.) Schwantes
Stem: mat-forming, thin; older nodes rooting. Leaf: cylindric, ± curved, wider toward tip, light green. Inflorescence: 1-flowered; pedicels 2–3 cm. Flower: sepals ± 3–4 mm, linear, obtuse; petals 8–9 mm, generally pink or pale purple. Seed: 0.5 mm.
Uncommon. Coastal habitats; < 35 m. North Coast, Central Coast, South Coast, Channel Islands; northern Mexico; native to southern Africa. [Mesembryanthemum floribundum Haw.] Apr–Jul [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Drosanthemum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 28 2015

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Geographic subdivisions indicated for the distribution of Drosanthemum floribundum 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.