The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

golden-yarrow, yellow-yarrow

Barstow woolly sunflower, Mohave or Barstow woolly sunflower, Mojave woolly sunflower

Habit Shrubs, 20–50(–100) cm. Annuals, 1–2.5 cm.
Stems

erect (woolly).

erect to spreading.

Leaves

(proximal usually mostly alternate): blades cuneate to obovate, 0.5–5 cm (the longer 1–2-pinnately lobed, lobes linear, the shorter 3–5-lobed or -toothed), ultimate margins entire, revolute, abaxial faces woolly, adaxial usually glabrate (distal leaves gradually reduced in size and lobing).

blades spatulate to cuneate, 3.5–10 mm, sometimes 1–3-lobed (each lobe terminating in short, sharp cusp), ultimate margins entire, weakly, if at all, revolute (apices acute), faces loosely woolly.

Peduncles

mostly 0–2.5(–9) cm.

± 0.1 cm.

Involucres

campanulate, 3–7 mm diam.

cylindric to obconic, 1–2+ mm diam.

Ray florets

0 or 4–6(–8);

laminae golden yellow, 2–5 (× 1.5–3) mm.

0.

Disc florets

10–75;

corollas 2–4 mm.

± 3;

corollas ± 2 mm (tubes cylindric, throats broadly cylindric, abruptly dilated, lobes glandular; anther appendages deltate, tapering distally, not glandular).

Phyllaries

4–7, distinct or connate at bases (broadly elliptic or ovate, carinate, apices obtuse or acute).

3–4, distinct.

Heads

(3–)4–7(–10) or 10–30+ per array.

borne singly or in clusters.

Cypselae

1.5–3.5 mm;

pappi of 2–14 cuneate to oblanceolate (subequal), erose scales 0.5–1.3 mm.

2–2.5 mm;

pappi of 12–14 linear to spatulate scales ± 1.5 mm.

Eriophyllum confertiflorum

Eriophyllum mohavense

Phenology Flowering Apr–May.
Habitat Sandy or gravelly areas, creosote-bush scrublands
Elevation 500–800 m (1600–2600 ft)
Distribution
from FNA
CA; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Heads 10–30+ per array; peduncles 0–1(–2) cm; involucres 3–5 mm diam.; disc corollas 2–3 mm
var. confertiflorum
1. Heads (3–)4–7(–10) per array; peduncles 0–2.5(–9) cm; involucres 5–7 mm diam.; disc corollas 3.5–4 mm
var. tanacetiflorum
Source FNA vol. 21, p. 361. FNA vol. 21, p. 355.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Baeriinae > Eriophyllum Asteraceae > tribe Heliantheae > subtribe Baeriinae > Eriophyllum
Sibling taxa
E. ambiguum, E. congdonii, E. jepsonii, E. lanatum, E. lanosum, E. latilobum, E. mohavense, E. multicaule, E. nubigenum, E. pringlei, E. staechadifolium, E. wallacei
E. ambiguum, E. confertiflorum, E. congdonii, E. jepsonii, E. lanatum, E. lanosum, E. latilobum, E. multicaule, E. nubigenum, E. pringlei, E. staechadifolium, E. wallacei
Subordinate taxa
E. confertiflorum var. confertiflorum, E. confertiflorum var. tanacetiflorum
Synonyms Bahia confertiflora Eremonanus mohavensis
Name authority (de Candolle) A. Gray: Proc. Amer. Acad. Arts 19: 25. (1883) (I. M. Johnston) Jepson: Man. Fl. Pl. Calif., 1117. (1925)
Web links