|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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.
Leaf like that of clover or wood sorrel; blade 1-palmate, leaflets 4, wedge-shaped, hairy
Sporangium case fused to stalk 0.81.7 mm, ± flat-ovoid, hairs long, dense, deciduous or not, teeth 12, near base
Species in genus: > 60 species: especially temp
Etymology: (L.F. Marsigli, Italian botanist, 16561730)
Reference: [Johnson 1986 Syst Bot Monogr 11:187]
Leaves: petioles of floating leaves weak, ± 15 cm, others 36 cm; leaflet surfaces ± straight, distal margin truncate or convex, faintly fine-crenate
Sporangium case 56 mm, 34 mm wide; stalk generally bent near tip
Ecology: Creek beds, flood basins, vernal pools, etc.
Elevation: 14002000 m.
Bioregional distribution: Klamath Ranges, n High Sierra Nevada, Modoc Plateau
Distribution outside California: to Washington, Montana, Wyoming
Horticultural information: IRR: 4, 5, 6, 17, WET: 1, 2, 3, 7, 14.