Name:
Lasthenia fremontii - Downingia bicornuta - Downingia spp. Vernal Pool Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance consists of intermittent to continuous cover of herbs <60 cm in height. <i>Downingia</i> spp. and/or <i>Lasthenia fremontii</i> are characteristically present in the herbaceous layer with <i>Castilleja campestris, Cuscuta howelliana, Eryngium castrense, Eryngium vaseyi, Gratiola ebracteata, Lilaea scilloides, Limnanthes douglasii, Plagiobothrys stipitatus var. micranthus, Plagiobothrys undulatus, Psilocarphus brevissimus var. brevissimus</i>, and <i>Ranunculus bonariensis var. trisepalus</i>. Other common species include <i>Briza minor, Bromus hordeaceus, Croton setigerus, Erodium</i> spp., <i>Hordeum</i> spp., <i>Hemizonia fitchii, Hypochaeris glabra, Leontodon taraxacoides, Lolium perenne</i>, or <i>Lythrum hyssopifolium</i>. Rare taxa in this alliance include <i>Castilleja campestris ssp. succulenta, Downingia pusilla, Gratiola ebracteata, Legenere limosa, Limnanthes floccosa ssp. californica, Navarretia myersii, Orcuttia pilosa</i>, and <i>Orcuttia tenuis</i>. The alliance is found in California at 15-710 m elevation in shallow vernal pool bottoms and edges, mostly hardpan pools on older geomorphic surfaces but also on volcanic substrates. Soils have short periods of inundation.
Accession Code:
urn:lsid:vegbank.org:commConcept:39367-{55EBEA7E-B876-454E-8E04-320BFBD3E1F4}
Plot-observations of this Community Concept:
0
|
