Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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



Dieter H. Wilken

Plants on soil, rocks, or other plants, cespitose, mat-like (± flat), or cushion-like (rounded)
Stems pendent to erect, short to widely spreading, rooting at base or in branch fork; branches intricately intertwined or not
Leaves many, simple, overlapping, appressed, small, ± scale-like, 1-veined, smooth to grooved on back, sessile to decurrent, generally 4-ranked; fertile leaves at same node of prostrate stems equal or not, if unequal, leaves below stem generally appressed, leaves above stem ascending to spreading
Cones generally terminal; leaves like those on sterile stems or not, generally strongly overlapping, triangular in X -section
Sporangia 1 per leaf axil, spheric to reniform; lower generally with (1–3)4 large, 3-ridged, yellow to orange spores; upper generally with many, small, generally pale-colored spores.



The only genus
Species in genus: ± 700 species: worldwide, generally tropical and warm temp
Etymology: (Latin: small Selago , ancient name for some Lycopodium )
. Some cultivated as groundcover and curiosity (S. kraussiana, S. lepidophylla , resurrection plant). Hand lens required to observe leaf shape, margin, bristle at tip, cones
Horticultural information: TRY; DFCLT.


S. watsonii Underw.

Plant cushion-like, ± open to dense
Stems prostrate to decumbent; main stems 2–12 cm; lateral branches ascending to erect, 1–3(5) cm
Leaves decurrent; upper and lower equal, 1.5–3.5 mm, linear-lanceolate to oblong, bristle-tipped or acute, bristle << 0.5 mm, rigid, margin entire to sparsely ciliate, hairs ± spreading
Cone 10–30 mm; leaves lanceolate to ovate; large spores yellow
Ecology: Open rocky sites, coniferous forest, alpine
Elevation: 2300–4100 m.
Bioregional distribution: Klamath Ranges (Trinity Alps), High Sierra Nevada, Transverse Ranges, Peninsular Ranges, n East of Sierra Nevada, White and Inyo Mountains
Distribution outside California: to Oregon, Montana, Utah

previous taxon | next taxon
bioregional map for SELAGINELLA%20watsonii being generated

Retrieve Jepson Interchange Index to Plant Names entry for Selaginella watsonii
Retrieve dichotomous key for Selaginella
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California