Eriophyllum confertiflorum var. tanacetiflorum

(Greene) Jepson

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

Basionym: Eriophyllum tanacetiflorum Greene
Treatment appears in FNA Volume 21. Treatment on page 361. Mentioned on page 354, 357.
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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.