Altamont Pass
Region: Altamont Pass AreaKey
| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Atriplex depressa | CNPS-EB: *A2 State CNPS: 1B.2 | brittlescale | |
| Plagiobothrys humistratus | CNPS-EB: A2 | low popcornflower, dwarf allocarya | |
| Spergularia macrotheca var. leucantha | CNPS-EB: A2 | large-flowered sand spurry | |
| Amsinckia eastwoodiae | CNPS-EB: A2 | Eastwood's fiddleneck | |
| Amsinckia tessellata var. tessellata | CNPS-EB: A1 | desert fiddleneck, devil's lettuce | |
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 | crownscale | |
| Cirsium occidentale var. coulteri | CNPS-EB: A1x | Coulter's thistle | |
| Collinsia bartsiifolia var. bartsiifolia | CNPS-EB: A1x | white Chinese houses | |
| Extriplex joaquinana | CNPS-EB: *A2 State CNPS: 1B.2 | San Joaquin spearscale, San Joaquin saltbush | |
| Hesperevax caulescens | (H. sparsiflora is more common | CNPS-EB: *A2 State CNPS: 4.2 | hogwallow starfish |
| Lasthenia glabrata subsp. glabrata | CNPS-EB: A2 | yellow-ray goldfields | |
| Lasthenia minor | CNPS-EB: A1 | coastal goldfields, woolly goldfields | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Microseris acuminata | CNPS-EB: A1 | Sierra Foothills microseris | |
| Microseris campestris | CNPS-EB: A2 | San Joaquin microseris | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Myosurus minimus subsp. apus | CNPS-EB: *A1? State CNPS: 3.1 | little mousetail | |
| Phalaris angusta | (historical-1912) | CNPS-EB: A1x | narrow canary grass |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 | large-flowered sand spurry | |
| Trifolium grayi | CNPS-EB: A2 | Gray's clover | |
| Allenrolfea occidentalis | CNPS-EB: B-PV | iodine bush | |
| Deinandra lobbii | (formerly Hemizonia l.) | CNPS-EB: C | three-rayed tarweed |
| Lepidium acutidens | CNPS-EB: C | sharp-toothed pepper-grass | |
| Myosurus minimus subsp. minimus | CNPS-EB: B-PV | common mouse-tail | |
| Packera breweri | (formerly Senecio b.) | CNPS-EB: B-PV | Brewer's ragwort, Brewer's butterweed |
| Pleuropogon californicus var. californicus | CNPS-EB: B-PV | semaphore grass | |
| Atriplex fruticulosa | CNPS-EB: B | ballscale, little oak orach, ball saltbush | |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | CNPS-EB: C | bulrush |
| California macrophylla | (formerly Erodium macrophyllum | CNPS-EB: B-PV | round-leaved filaree |
| Cirsium cymosum var. cymosum | CNPS-EB: B-PV | peregrine thistle | |
| Heterotheca sessiliflora subsp. bolanderi | H. s. ssp. echioides is more common | CNPS-EB: C | Bolander goldenaster |
| Holocarpha obconica | CNPS-EB: B | San Joaquin tarplant | |
| Layia chrysanthemoides | CNPS-EB: B | smooth layia | |
| Lepidium latipes | CNPS-EB: B-PV | dwarf peppergrass | |
| Mentzelia affinis | CNPS-EB: B | hydra stick-leaf | |
| Monolopia major | CNPS-EB: B | cupped monolopia | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Phacelia tanacetifolia | CNPS-EB: B | tansy phacelia | |
| Selaginella bigelovii | CNPS-EB: C | spike-moss | |
| Stachys albens | CNPS-EB: B-PV | white hedge nettle | |
| Suaeda nigra | (formerly S. moquinii) | CNPS-EB: B | bush seepweed |
