Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

MARSILEACEAE

MARSILEA FAMILY

Alan R. Smith and Thomas Lemieux

Plant generally aquatic, generally rooted in, often stranded on mud; rhizome creeping, slender, branched
Leaves floating, emergent, or out of water, ± alike; blade 1-palmate or 0, << petiole; veins not or repeatedly forked, free or netted
Sporangia in stalked, spheric or ± flat-ovoid, hard cases of 1 kind, near petiole base
Spores large (female) and small (male), in separate sporangia
Genera in family: 3 genera, ± 70 species: especially temp.

MARSILEA


Leaf like that of clover or wood sorrel; blade 1-palmate, leaflets 4, wedge-shaped, hairy
Sporangium case fused to stalk 0.8–1.7 mm, ± flat-ovoid, hairs long, dense, deciduous or not, teeth 1–2, near base
Species in genus: > 60 species: especially temp
Etymology: (L.F. Marsigli, Italian botanist, 1656–1730)
Reference: [Johnson 1986 Syst Bot Monogr 11:1–87]

Native

M. vestita Hook. & Grev. subsp. vestita


Leaves: petioles of floating leaves weak, 6–35 cm, others 3–8 cm; leaflet sides (or 1) often concave, distal margin convex, ± entire
Sporangium case 3–8 mm, 3–7 mm wide; stalk not bent
Ecology: Habitats ± as M. oligospora
Elevation: < 2200 m.
Bioregional distribution: Klamath Ranges, Inner North Coast Ranges, Cascade Range, n&s Sierra Nevada Foothills, High Sierra Nevada, Great Central Valley, Central Coast, San Francisco Bay Area, Outer South Coast Ranges, South Coast, Western Transverse Ranges, San Bernardino Mountains, Peninsular Ranges, Modoc Plateau, Sonoran Desert
Distribution outside California: to w&c Canada, Mexico, also Peru
Horticultural information: IRR: 4, 5, 6, 7, 14, 15, 16, 17, 24, WET: 1, 2, 3, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21, 22, 23; GRCVR.

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