4.
Ericameria bloomeri
(A. Gray) J. F. Macbride, Contr. Gray Herb. 56: 36. 1918.
Bloomer's goldenbush
Haplopappus bloomeri
A. Gray, Proc. Amer. Acad. Arts 6: 541. 1865 (as Aplopappus)
Plants
20—90 cm.
Stems
green to reddish brown when young, branched, glabrous or sparsely hairy (sometimes tomentulose), often gland-dotted (sessile).
Leaves
ascending to spreading; blades filiform to narrowly oblong (adaxially flat to sulcate), 20—70 × 0.5—4 mm, midnerves evident abaxially, apices acute, sometimes mucronate, faces glabrous or sparsely hairy, often gland-dotted (sessile) and appearing pustular
;
axillary leaf fascicles sometimes present.
Heads
in (leafy) racemiform to narrowly paniculiform arrays (2—15 cm).
Peduncles
3—15 mm (bracts usually 0).
Involucres
narrowly campanulate, 8—11 × 7—12 mm.
Phyllaries
17—36 in 3—6 series, green to tan, ovate to linear-lanceolate, 3.5—11 × 0.8—2 mm, subequal, herbaceous or herbaceous-tipped, mid and inner chartaceous, midnerves evident at least on distal
1
/ 2 , (margins ciliate) apices acute to acuminate or cuspidate, abaxial faces glabrous or hairy, sometimes gland-dotted, resinous.
Ray florets
0—5; laminae elliptic, 8—12 × 1.5—3 mm.
Disc florets
4—14; corollas 7—11 mm.
Cypselae
tan to reddish brown, narrowly elliptic, 6—10 mm, glabrous or apically villous;
pappi
tan to reddish brown, 6—9 mm.
2
n
= 18.
Flowering summer—fall. Sandy or rocky soils, openings in coniferous woods, Arid Transition and Canadian zones; 1000—3000 m; B.C.; Calif., Idaho, Nev., Oreg., Wash.
Ericameria bloomeri
is apparently extirpated in British Columbia. It is widespread, relatively common, and variable. The significance of infraspecific taxa named by H. M. Hall (1928) is largely unexplored.
