Aphyllon robbinsii (Heckard ex Colwell & Yatsk.) A.C. Schneid.Robbins' broomrape |
![]() © 2017 Dylan Neubauer |
Scientific Name: |
Aphyllon robbinsii (Heckard ex Colwell & Yatsk.) A.C. Schneid. |
Common Name: |
Robbins' broomrape |
Family: | Orobanchaceae |
Element Code: | PDORO040Q0 |
USDA Plants Symbol: | |
Synonyms/Other Names: |
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Lifeform: | annual herb (achlorophyllous) |
Blooming Period: Apr-Jul | Apr-Jul |
Elevation: | 0-100 (0-330) |
General Habitats: | Coastal bluff scrub |
Microhabitat: | Rocky, Sandy |
Microhabitat Details: | Rocky or sandy soil on bluffs, cliffs, landslides, or shell mounds; possibly on sand dunes. Its only confirmed host is Eriophyllum staechadifolium. |
CA Rare Plant Rank: | 1B.1 |
Global Rank: | G1 |
State Rank: |
S1 |
State List: | None |
Fed List: | None |
Other Status: | |
CRPR Changes: |
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Total Occurrences: | 13 |
Element Occurrence Ranks: | |
Excellent (A) | 0 |
Good (B) | 0 |
Fair (C) | 1 |
Poor (D) | 0 |
None (X) | 1 |
Unknown (U) | 11 |
California Endemic: False | |
California Counties and Islands: Name (Code) | |
Marin (MRN), Monterey (MNT), San Francisco (SFO), San Luis Obispo (SLO), San Mateo (SMT), Santa Cruz (SCR) | |
Quads: Name (Quad Code) | |
Montara Mountain (3712254), Monterey (3612158), Piedras Blancas (3512163), Pigeon Point (3712224), Point Sur (3612138), San Francisco North (3712274), San Francisco South (3712264), Santa Cruz (3612281), Soberanes Point (3612148) |
Threat List Total: | 4 | |
EOs with Threat Listed: | Total EOs | % of EOs |
5 | 38 % | |
Non-native plant impacts | 2 | 15% |
Other | 1 | 7% |
Development | 1 | 7% |
Foot traffic/trampling | 1 | 7% |
Threats: |
Threatened by development, non-native plants, foot traffic, and herbivores (rodents). |
Taxonomy: |
Previously identified as A. californicum; differentiated by its smaller flowers, white to cream corollas with pink or purple venation, generally glabrous anther sacs, and growth on Eriophyllum staechadifolium. |
Proposed addition to CRPR 1B.1 (2023) |
Phytoneuron 2016-58: 1–11 (2016) |
PhytoKeys 75: 107–118 (2016) |