Rare Plants and Common Invasive Plants of the Reserve
Click here to see the Guide to Common Plants of the Reserve, includes photos and important information.
| Listed and Special Status Vascular Plants in Eastern Merced County | ||||||
| Common Name | Scientific Name | Protected Status | Family | Habitat | In Grasslands/Vernal Pools | |
| Hartweg’s golden sunburst | Pseudobahia bahiifolia | FE, CE, CNPS 1B | Asteraceae | no known occurrences in Reserve | ||
| Hoover's spurge | Chamaecyse hooveri | FT, CNPS 1B | Euphorbiaceae | Large vernal pools; 25-250 m (82-820 ft); July-Oct. | no known occurrences in Reserve | |
| Colusa grass | Neostapfia colusana | FT, CE, CNPS 1B | Poaceae | |||
| San Joaquin Valley orcutt grass | Orcuttia inaequalis | FT, CE, CNPS 1B | Poaceae | vernal pool endemic | ||
| Hairy Orcutt grass | Orcuttia pilosa | FE, CE, CNPS 1B | Poaceae | no known occurrences in Reserve | ||
| Greene’s tuctoria | Tuctoria greenei | FE, CR, CNPS 1B | Poaceae | no known occurrences in Reserve | ||
| Succulent owl's-clover | Castilleja campestris ssp. succulentus | FT, CE, CNPS 1B | Scrophulariaceae | Throughout | ||
| Sanford’s arrowhead | Sagittaria sanfordii | FSC, CNPS 1B | Alismataceae | |||
| Delta button celery | Eryngium racemosum | FSC, CE, CNPS 1B | Apiaceae | Riparian scrub, vernally mesic clay depressions; 3-30 m (10-98 ft); June-Aug. |
No known occurrences | |
| Spiny-sepaled button-celery | Eryngium spinosepalum | FSC, CNPS 1B | Apiaceae | Vernal pools and swales; 100-255 m(328-837 ft); Apr-May. |
Appears to be predominant Eryngium species on rangelands in the study area. |
|
| Hoover’s calycadenia | Calycadenia hooveri | FSC, CNPS 1B | Asteraceae | Ione (rarely Valley Springs) rock outcrops in cismontane woodland, valley and foothill grassland; 65-300 m (213-984 ft); July-Sept. |
Scattered locations in E. region | |
| Hogwallow starfish | Hesperevax caulescens | CNPS 4 | Asteraceae | |||
| Dwarf downingia | Downingia pusilla | CNPS 2 | Campanulaceae | Vernal pools and swales; 1-445 m (3.3-1,450 ft); Mar-May. | Scattered locations in rangelands | |
| Legenere | Legenere limosa | FSC, CNPS 1B | Campanulaceae | |||
| Merced phacelia | Phacelia ciliata var. opaca | FSC, CNPS 1B | Hydrophyllaceae | |||
| Merced monardella | Monardella leucocephala | FSC, CNPS 1A | Lamiaceae | |||
| Stinkbells | Fritillaria agrestis | CNPS 4 | Liliaceae | |||
| Beaked clarkia | Clarkia rostrata | FSC, CNPS 1B | Onagraceae | Few locations; steep, rocky slopes | ||
| Henderson’s bentgrass | Agrostis hendersonii | FSC, CNPS 3 | Poaceae | Thin, mesic soils in valley and foothill grasslands, vernal pools; 70-305 m (230-1,000 ft); Apr-May. |
E. portion of VST | |
| Pincushion navarretia | Navarretia myersii | CNPS 1B | Polemoniaceae | not endangered but is rare; occurs on Flying M Ranch and may occur on Reserve | ||
| Shining navarretia | Navarretia nigelliformis ssp. radians | CNPS 1B | Polemoniaceae | |||
| Ewan’s larkspur | Delphinium hansenii ssp. ewanianum | CNPS 4 | Ranunculaceae | Cismontane woodland, valley and foothill grassland; 65-300 m (213-984 ft); Mar-May. | Rare; widely scattered | |
| Bogg’s Lake hedge-hyssop | Gratiola heterosepala | CE,CNPS 1B | Scrophulariaceae | |||
| Annual, introduced grasses | ||||||
| Wild Oats | Avena sp | |||||
| Brome Grass | Bromus sp. | |||||
| Barleys | Hordeuem sp. | |||||
| Fescue | Vulpia sp. | |||||
| Soft chess | ||||||
| Ripgut brome | ||||||
| Annual, Introduced and Native Herbs | ||||||
| Filarees | Erodium sp. | |||||
| Fiddleneck | Amsinkia sp. | |||||
| Lupines | Lupinus sp. | |||||
| Owl's Clover | Castilleja | |||||
| Perennials species | ||||||
| California Oatgrass | Danthonia californica | |||||
| Sweet Vernal Grass | Anthoxanthum odoratum | |||||
| Goldfields | Lasthenia sp. | |||||
| Meadowfoam | Limnanthes alba | |||||
| Popcorn Flower | Plagiobothrys | |||||
| Valley Tassels | ||||||
| Hawkbit | Asteracea | |||||
| Crown Brodiaea | ||||||
| Wild Hyacinth | ||||||
| Bearstyle | Scrophulariaceae | |||||
| Vernal Pool Monkeyflower | Scrophulariaceae | |||||
| Blow Wives | ||||||
| Vernal Pool Brodiaea | ||||||
| Valley Checkerbloom | ||||||
| Winged Water Starwort | aquatic species | |||||
| Wooly Marbles | ||||||
| Coyote Thistle | aquatic species | |||||
| White-tipped Clover | Apiaceae | |||||
| Dwarf Sac Clover | Apiaceae | |||||
| Bluedicks | Brodeiae | |||||
| Filaree | ||||||
| Vernal Pools Goldfields | ||||||
| Butter and Eggs | ||||||
| Vernal Pool Buttercup | ||||||
| Frying Pan Poppy | Paparvaceae | |||||
| Nodding Needlegrass | ||||||
| Prairie Junegrass | ||||||
| Creeping Wildrye | ||||||
| native annual foxgrass | ||||||
| Status codes | ||||||
| FE = Federally listed, Endangered | ||||||
| FT = Federally listed, Threatened | ||||||
| FSC = Federal Species of Concern | ||||||
| FC = Federally Candidate for listing | ||||||
| FPD = Federal Proposed for De-listing | ||||||
| FPT = Federal Proposed Threatened | ||||||
| MNBMC = Migratory Nongame Bird of Management Concern | ||||||
| CE = State Listed Endangered Species | ||||||
| CT = State Listed Threatened Species | ||||||
| CSSC = California Department of Fish and Game Species of Special Concern; | ||||||
| CFP = Species Fully Protected under the CA Fish and Game Code | ||||||
| California Native Plant Society (CNPS) Lists: List 1A = species presumed to be extinct; List 1B = species | ||||||
| considered rare, threatened, or endangered in California and elsewhere; List 2: species rare or threatened in | ||||||
| California but more common elsewhere; List 3: species about which more information is needed to make a | ||||||
| determination regarding rarity; List 4 = watch list, species uncommon but not currently threatened or | ||||||
| endangered | ||||||
