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Plant Profile

Valley Ringstem (Anulocaulis annulatus)

Global Rank: G3 - Vulnerable
Legal Status: N/A
Family: Nyctaginaceae
State: CA
Nature Serve ID: 138507
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

The valley ringstem is a perennial herb that hails from the four oclock family (April-May) and is endemic to the Death Valley region of the Mojave Desert. It prefers rocky canyon environments where it grows multiple erect stems that can be up to 2m tall. Along these stems are broad, thick, and bumpy leaves that are covered in stiff hairs. At the top of these stems, A. annulatus produces flared, light pink blooms that are also hairy. The blooms grow in clusters of 5-15 flowers with one long stamen growing out of each. Though currently labeled Imperiled because of its endemic status, A. annulatus almost never grows into a substantial population and is always found in solitary occurences. That said, its Imperiled status could also be attributed to its solitary growing patterns.

Where is Valley Ringstem (Anulocaulis annulatus) located in the wild?

Habitat:

A. annulatus can be found in rocky canyon environments throughout Inyo County.

Distribution:

A. annulatus is endemic to the mountainous regions of Inyo County.

States & Provinces:

Valley Ringstem can be found in California

Which CPC Partners conserve Valley Ringstem (Anulocaulis annulatus)?

California Botanic Garden

Not Sponsored

Conservation Actions

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 1 accessions of Anulocaulis annulatus in orthodox seed collection. There are as many as 200 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 1 seed accessions of Anulocaulis annulatus from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass an unknown number of maternal plants