Eriophyllum confertiflorum var. tanacetiflorum

(Greene) Jepson

Man. Fl. Pl. Calif., 1116. 1925.

EndemicConservation concern
Basionym: Eriophyllum tanacetiflorum Greene Pittonia 2: 21. 1889
Treatment appears in FNA Volume 21. Treatment on page 361. Mentioned on page 354, 357.

Leaf blades spatulate to obovate, 2–5 cm, 3–5-lobed, lobes ± oblong. Heads (3–)4–7(–10) per array. Peduncles 0–2.5(–9) cm. Involucres 5–7 mm diam. Phyllaries 5–7(–8), ovate, apices obtuse or acute. Ray florets 0 or 4–6; laminae 4–5 mm. Disc florets 35–75; corollas 3.5–4 mm. Cypselae 2–3.5 mm; pappi 0.5–1.3 mm. 2n = 64.


Phenology: Flowering May–Jul.
Habitat: Dry sites, oak woodlands
Elevation: 300–1000 m

Discussion

Of conservation concern.

Variety tanacetiflorum is known only from the central Sierra Nevada foothills. At least one population is sympatric with Eriophyllum lanatum and E. confertiflorum var. confertiflorum. It may deserve specific recognition.

Selected References

None.

Lower Taxa

None.
Dale E. Johnson +  and John S. Mooring +
(Greene) Jepson +
Eriophyllum tanacetiflorum +
300–1000 m +
Dry sites, oak woodlands +
Flowering May–Jul. +
Man. Fl. Pl. Calif., +
Endemic +  and Conservation concern +
Undefined (tribe Undefined) subtribe Eriophyllinae +
Eriophyllum confertiflorum var. tanacetiflorum +
Eriophyllum confertiflorum +
variety +