158 
COMPOSITAE 
achenes with a 1 to 5-dentate often oblique border at summit.—Along 
the seaboard, Los Angeles to San Francisco. 
2. G. camporum Greene. White-stem Grindelia. Stems usually 
several from base, simple or branching above, 2 to 7 dm. high; leaves 
oblong to oblanceolate, clasping, serrate; heads solitary or loosely corym¬ 
bose; achenes with 2 pappus-bristles.—Inner foothills and interior plains. 
2. HETEROTHECA Cass. 
Tall hairy perennial herbs with alternate leaves and heads of yellow 
flowers in a terminal corymbose panicle. Involucre broadly oblong, its 
narrow bracts imbricated. Ray and disk-flowers numerous. Ray-achenes 
triangular; pappus none. Disk-achenes compressed, pappus double. 
(Greek heteros, different, and theke, a case or ovary, the achenes of disk 
and ray dissimilar.) 
1. H. grandiflora Nutt. Telegraph Weed. Stems mostly simple be¬ 
low, 5.7 to 14 dm. high; leaves ovate to oblong, the lower petioled, the 
upper sessile; heads rather large; pappus brick-red in age; outer pappus 
of disk-flowers inconspicuous.—S. Cal., n. to the Great Valley. 
3. SOLIDAGO L. Golden Rod 
Perennial herbs with alternate leaves. Heads small, the clusters in 
a pyramidal or spike-like panicle, or corymbose. Bracts of the involucre 
narrow, thin, imbricated in 2 or more series. Flowers yellow. Pappus of 
capillary bristles. Achenes terete or angular. (Latin, solidus, and ago, 
to unite firmly, certain species reputed to have wound-healing proper¬ 
ties.) 
Stems branching; flower clusters corymbose . 1 . S', occidentals. 
Stems simple; flowers in a terminal panicle.2. S. californica. 
1. S. occidentalis Nutt. Western Golden Rod. Stems 8 to 14 dm. 
high, very leafy, paniculatelv branching, the branches terminated by 
corymbose clusters of small heads; herbage glabrous; leaves linear or 
nearly so, sprinkled with clear dots.—Marshes, stream beds and river 
banks. 
2. S. calif ornica Nutt. Common Golden Rod. Stem simple be¬ 
low the terminal panicle, 5.to 11 dm. high; herbage minutely pubescent; 
leaves oblong, the lower serrate; panicle dense, not leafy, 9.6 to 31 cm. 
long.—Dry plains or hillsides or in the mountains. 
4. ERICAMERIA Nutt. 
Ours low evergreen shrubs with linear or terete often heath-like leaves. 
Foliage punctate, resin-bearing. Flowers yellow, the heads in terminal 
clusters. Rays present or none. Involucre turbinate, its bracts imbri¬ 
cated. Pappus-bristles slender, dull white or yellowish, in age reddish. 
(The minute evergreen leaves of some species resemble those of 
Erica.) 
1. E. ericoides (Less.) Jepson. Dune-heath. Low heather-like 
shrub 3 to 5 dm. high, with decumbent main stems and many erect 
branchlets; leaves linear-terete, crowded or fascicled, heads corymbose- 
paniculate; corolla with dilated throat.—Sand dunes along the coast. 
2. E. arborescens (Gray) Greene. Golden Fleece. Erect shrub 
with fastigiate branches, 8 to 14 dm. high; leaves numerous, narrowly 
