Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

AIZOACEAE

FIG-MARIGOLD FAMILY

John Bleck, Wayne R. Ferren Jr., Nancy J. Vivrette

Annual, perennial herb, shrub, generally fleshy
Stem underground or prostrate to erect
Leaves generally simple, generally cauline, generally opposite; stipule generally 0; blade generally glabrous, often glaucous
Inflorescence: cyme or flower solitary
Flower generally bisexual, radial; hypanthium present; sepals 3–8; petals generally many in several whorls, free or fused at base, linear, sometimes 0; 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, stigmas 1–20
Fruit: generally capsule, opening by flaps or circumscissile, or berry or nut
Seeds 1–many per chamber, often with aril
Genera in family: 130 genera, 2500 species: generally subtropical, especially s Africa; many cultivated, some waifs in CA (e.g., Disphyma crassifolium (L.) L. Bolus: ovary glands convex and minutely crenate, stigmas densely plumose, fruit chambers 5, seeds ovate, ± smooth; Lampranthus species: ovary glands fused, fruit chambers 5, seeds pear-shaped, ± black, rough; both genera members of Ruschieae)
Reference: [Ferren et al. 1981 Madroño 28:80–85]
Glinus, Mollugo are in Molluginaceae.

TRIANTHEMA

HORSE-PURSLANE

Wayne R. Ferren Jr.

Annual, perennial herb, shrub, branched from base, glabrous, hairy, or papillate, ± fleshy
Stem generally prostrate
Leaves ± opposite, unequal; stipules papery; blade linear to round, base tapered, margin entire
Inflorescence: flower generally solitary; bracts 2
Flower: calyx lobes 5, tip pointed; petals 0; stamens 5–10; ovary superior, chambers 1–2, ovules 1–few, placentas basal, style 1–2
Fruit: capsule, papery or leathery, circumscissile; lid winged
Seed reniform, rough; aril present
Species in genus: 20 species: tropical, subtropical, especially Australia
Etymology: (Greek: 3-flowered)

Native

T. portulacastrum L.

Annual
Stem < 10 dm; young branches with lines of hairs below petioles
Leaf: stipules reduced to 2 teeth on petiole; petiole generally = blade; blade < 4 cm, smaller on twigs, elliptic to ± round, base tapered, tip often notched
Inflorescence: flower sessile, ± covered by stipule
Flower: calyx 3–5 mm, lobes 2.5 mm, lanceolate, purplish within; ovary chamber 1, stigmas 2
Fruit 4–5 mm, cylindric, ± curved; wings of lid 2, prominent, erect
Seed 1.5–2 mm, ridged, reddish brown to black
Ecology: Uncommon. Moist or seasonally dry wetlands, waste places
Elevation: < 1000 m.
Bioregional distribution: San Joaquin Valley, Desert
Distribution outside California: to Texas, e N.America, S.America., tropical Old World
Flowering time: Jun–Nov

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bioregional map for TRIANTHEMA%20portulacastrum being generated
 
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Retrieve Jepson Interchange Index to Plant Names entry for Trianthema portulacastrum
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