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betonyleaf brickellbush

Habit Perennials, 30–90 cm.
Stems

branched from bases, pubescent.

Leaves

opposite;

petioles 1–5 mm;

blades 3-nerved from bases, oblong, obovate, or ovate, (15–)30–80 × 10–35 mm, bases cordate or truncate, margins crenate-serrate, apices acute to obtuse, faces sparsely pubescent and gland-dotted.

Peduncles

2–15 mm, hispid to hirsute.

Involucres

cylindric to narrowly campanulate, 8–12 mm.

Florets

10–16;

corollas purplish, 7–9 mm.

Phyllaries

17–20 in 3–5 series, pale green, often purplish, 5–9-striate, unequal, margins narrowly scarious-ciliate (apices acute to acuminate);

outer lance-ovate (sparsely pubescent), inner narrowly lanceolate (glabrous).

Heads

erect, usually in loose, paniculiform arrays, sometimes borne singly.

Cypselae

3–4 mm, densely pubescent to velutinous;

pappi of 40–52 white, barbellate bristles.

2n

= 18.

Brickellia betonicifolia

Phenology Flowering Jul–Oct.
Habitat Oak woodlands, open limestone hillsides
Elevation 1500–2000 m (4900–6600 ft)
Distribution
from FNA
AZ; NM; Mexico
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 495.
Parent taxa Asteraceae > tribe Eupatorieae > Brickellia
Sibling taxa
B. amplexicaulis, B. atractyloides, B. baccharidea, B. brachyphylla, B. californica, B. chenopodina, B. cordifolia, B. coulteri, B. cylindracea, B. dentata, B. desertorum, B. eupatorioides, B. floribunda, B. frutescens, B. grandiflora, B. greenei, B. hinckleyi, B. incana, B. knappiana, B. laciniata, B. lemmonii, B. longifolia, B. microphylla, B. nevinii, B. oblongifolia, B. parvula, B. pringlei, B. rusbyi, B. simplex, B. venosa, B. veronicifolia
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 72. (1853)
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