Rare Plant Inventory

A Science-Driven Approach

Latest Updates: Version v-9.5 released. Release Notes

Plummer's mariposa-lily (Calochortus plummerae). Credit Lara Hartley.

Additions / Changes / Deletions

Name
Eryngium montereyense added to 1B.1 on 2023-03-15
Orobanche ludoviciana changed from 2B.3 to CBR on 2023-03-15
Botrychium minganense changed from 2B.2 to 4.2 on 2023-02-15
Erythranthe discolor added to 4.2 on 2023-02-15
Layia erubescens added to 1B.2 on 2023-01-30
Malacothamnus mendocinensis changed from 1A to 1B.1 on 2023-01-20
Hoffmannseggia peninsularis added to 1B.1 on 2023-01-20
Penstemon clevelandii var. mohavensis added to 1B.2 on 2022-11-28
Campylopodiella stenocarpa changed from 2B.2 to CBR on 2022-11-17
Erigeron conditii added to 1B.1 on 2022-11-17
Scytinium siskiyouense added to 1B.1 on 2022-10-13
Marsupella aquatica Considered But Rejected on 2022-10-13
Scytinium teretiusculum Considered But Rejected on 2022-10-12
Selaginella scopulorum changed from 3 to 2B.3 on 2022-10-04
Bryum calobryoides Considered But Rejected on 2022-09-28
Platismatia lacunosa added to 2B.3 on 2022-09-28
Utricularia ochroleuca changed from 2B.2 to CBR on 2022-09-22
Dendriscocaulon intriculatum Considered But Rejected on 2022-09-20
Camissonia lacustris added to 1B.2 on 2022-09-19
Collema nigrescens Considered But Rejected on 2022-08-31
Polystichum lonchitis changed from 3 to CBR on 2022-08-23
Monardella exilis added to 4.2 on 2022-08-04
Monardella breweri ssp. microcephala added to 2B.2 on 2022-07-22
Cryptantha pterocarya var. stenoloba added to 2B.1 on 2022-07-18
Dermatocarpon meiophyllizum added to 2B.3 on 2022-07-14
Erythranthe bergeri added to 3 on 2022-06-21
Erythranthe angulosa added to 3 on 2022-06-21
Monardella australis ssp. gabrielensis added to 1B.2 on 2022-05-23
Monardella breweri ssp. glandulifera added to 1B.2 on 2022-05-20
Helianthus exilis changed from 4.2 to CBR on 2022-05-03
Castilleja ambigua var. heckardii added to 1B.1 on 2022-04-07
Erythranthe serpentinicola added to 1B.1 on 2022-03-30
Monardella mojavensis added to 1B.3 on 2022-03-15
Castilleja schizotricha changed from 4.3 to 1B.3 on 2022-02-18
Chorizanthe rectispina changed from 1B.3 to 1B.2 on 2022-01-06
Silene greenei ssp. angustifolia changed from 4.2 to 1B.2 on 2021-11-21
Claytonia crawfordii added to 1B.2 on 2021-10-14
Silene bolanderi added to 1B.2 on 2021-07-30
Silene hookeri added to 2B.2 on 2021-07-30
Silene nelsonii added to 4.3 on 2021-06-24
Peltigera pacifica added to 2B.2 on 2021-06-07
Elodium blandowii changed from 2B.3 to 2B.2 on 2021-05-26
Sulcaria spiralifera changed from 1B.1 to 1B.2 on 2021-05-24
Bryoria pseudocapillaris changed from 3.2 to CBR on 2021-05-24
Sedum marmorense added to 1B.2 on 2021-05-14
Sedum patens added to 1B.2 on 2021-05-14
Sedum rubiginosum added to 1B.2 on 2021-05-14
Sedum sanhedrinum added to 1B.2 on 2021-05-14
Sedum obtusatum ssp. paradisum added to 1B.1 on 2021-05-11
Carex scoparia var. scoparia changed from 2A to 2B.2 on 2021-04-28

Status Review Documents

Currently in Review

Name
Agave simplex lonesome agave
Allium incomptum Minnesota Mountain onion
Aphyllon robbinsii Robbins' broomrape
Isoetes minima Columbia quillwort
Nemacladus twisselmannii var. botanywomaniae botany woman's threadplant

Status Review Forum Forum Membership Reviewer Form