Marsilea vestita
hairy clover-fern, pepperwort, water-clover pepperwort
Specimens
Photos

Distribution: Occurring chiefly east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to the Great Plains and southeastern U.S.

Habitat: Ponds, vernal pools, and floodplains from low to middle elevations.

Spores: April-October

Origin: Native

Conservation Status: Not of concern

Description:
General:

Rhizomatous perennials forming clones, aquatic to amphibious; stems creeping on substrate surface or subterranean; roots emerging from nodes.

Leaves:

Leaves long-petiolate, petiole threadlike, 2-20 cm, slightly pubescent; blade palmately divided into 4 pinnae, pinnae obdeltate, 4-19 mm long and 4-16 mm broad, pubescent to glabrous.

Spores:

Sporocarp stalks erect and not branched, attached at base of petiole or barely above it, not hooked at apex, 0.5-25 mm; sporocarps at right angle to stalk or slightly nodding, 3.6-7.6 mm long and 1.5-2 mm broad, elliptic to nearly round in lateral view, pubescent but becoming glabrous, scars from dropped trichomes commonly appearing as small purple or brown specks; sori 14-22.

Accepted Name:
Marsilea vestita Hook. & Grev.
Publication: Icon. Filic. 2: plate 159. 1830.

Synonyms & Misapplications:
Marsilea fournieri C. Chr.
Marsilea mucronata A. Braun
Marsilea tenuifolia Engelm. ex A. Braun
Marsilea uncinata A. Braun
Marsilea vestita Hook. & Grev. ssp. tenuifolia (Engelm. ex A. Braun) D.M. Johnson
Marsilea vestita Hook. & Grev. ssp. vestita [JPM]
Additional Resources:

PNW Herbaria: Specimen records of Marsilea vestita in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Marsilea vestita checklist entry.

E-Flora BC: Marsilea vestita atlas page.

CalPhotos: Marsilea vestita photos.

USDA Plants: Marsilea vestita information.

18 photographs:
Group by