Taxon Report
Galium buxifolium Greenebox bedstraw |
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Taxon Summary
Galium buxifolium, commonly known as box bedstraw, is a perennial deciduous shrub in the Rubiaceae that is found only in California. It occurs within Closed-cone coniferous forest, Coastal bluff scrub, and Coastal scrub, growing at elevations from 5 to 400 meters. Galium buxifolium is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Galium buxifolium Greene |
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Common Name: |
box bedstraw |
| Family: | Rubiaceae |
| Element Code: | PDRUB0N0D0 |
| USDA Plants Symbol: | GABU |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial deciduous shrub |
| Blooming Period: Mar-Jul | Mar-Jul |
| Elevation: | 5-400 (15-1310) |
| General Habitats: | Closed-cone coniferous forest, Coastal bluff scrub, Coastal scrub |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2G3 |
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State Rank: |
S2 |
| State List: | CR |
| Fed List: | FD |
| Other Status: | SB_SBBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 17 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 5 |
| Fair (C) | 0 |
| Poor (D) | 2 |
| None (X) | 1 |
| Unknown (U) | 9 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Santa Barbara (SBA) | |
| Quads: Name (Quad Code) | |
| San Miguel Island East (3312083), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 6 % | |
| Erosion/runoff | 1 | 5% |
Notes
| Known from approximately 10 occurrences. Previously threatened by feral herbivores. Currently threatened by non-native plants and habitat alteration, and possibly by climate change. See Bulletin of the California Academy of Sciences 2:150 (1886) for original description, and Flora of California 4(2):20-21 (1979) by L. Dempster for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 October 2025].