Jasper Ridge Place Names supplemental information
Boat Launch (Searsville Lab Landing), Sector 30 D2
The landing is the only known location of western dodder (Cuscuta occidentalis) where it grows on cocklebur (Xanthium strumarium). It is one of several Preserve plant hot spots (e.g., Bear Creek Crossing and San Francisquito Creek near the Dennis Martin Site) with a diverse and often changing assemblage of native and naturalized plants including Wolffia columbiana, upright burhead (Echinodorus berteroi), shining pondweed (Potamogeton illinoensis), cotton-batting plant (Pseudognaphalium stramineum), southern mudwort (Limosella acaulis), knot grass (Paspalum distichum), biennial sagewort (Artemisia biennis), and lowland cudweed (Gnaphalium palustre). Twenty meters north of the landing above the narrow use-trail grows one of the Preserve's two populations of elegant clarkia (Clarkia unguiculata). South of the site at the Salix exigua/lake interface is the Preserve’s largest population of Juncus effusus ssp. pacificus.