Eriogonum giganteum var. compactum

Dunkle

Bull. S. Calif. Acad. Sci. 41: 130. 1943.

Common names: Santa Barbara Island’s St. Catherine’s-lace
Endemic
Synonyms: Eriogonum giganteum subsp. compactum (Dunkle) Munz
Treatment appears in FNA Volume 5. Treatment on page 302. Mentioned on page 301.

Plants 4–6(–10) dm. Aerial flowering stems (1.5–)2–3 dm, tomentose. Leaves: petiole 0.5–1 cm; blade oblong-ovate, 2.5–3.5(–6) × 1.5–2(–4) cm, densely white-tomentose on both surfaces or sometimes slightly less so adaxially. Inflorescences compact to rarely open, 2–15 cm wide. Involucres (3–)3.5–4(–5) mm. Flowers 2–2.5 mm. Achenes 2–2.5 mm.


Phenology: Flowering May–Oct.
Habitat: Rocky outcrops and cliffs, coastal scrub communities
Elevation: 0-100 m

Discussion

Of conservation concern.

Variety compactum is a rare and localized plant on Santa Barbara and Sutil islands, Santa Barbara County. It is in cultivation, but only in botanical gardens.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
Dunkle +
Undefined subg. Eucycla +
Santa Barbara Island’s St. Catherine’s-lace +
0-100 m +
Rocky outcrops and cliffs, coastal scrub communities +
Flowering May–Oct. +
Bull. S. Calif. Acad. Sci. +
Eriogonum giganteum subsp. compactum +
Eriogonum giganteum var. compactum +
Eriogonum giganteum +
variety +