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Tonella floribunda

greater baby-innocence, large-flower tonella, many-flower tonella

Habit Annuals 7–40 cm.
Stems

erect, branched, sometimes simple, glandular-pilose.

Leaves

petiole 0–15 mm;

proximal cauline leaves simple or tripartite, margins entire or crenate to dentate or serrate, medial cauline leaves deeply tripartite, segments lanceolate-elliptic, margins entire, sometimes crenate to serrate;

surfaces sparsely pilose adaxially, abaxially along midvein, and along margins, sometimes glabrous.

Racemes

flowers 2–10 per node;

bracts deeply tripartite, sometimes simple, segments linear to narrowly lanceolate or elliptic, margins entire or serrate.

Pedicels

10–25 mm, sparsely to densely glandular-pubescent.

Flowers

calyx subrotate, lobes narrowly triangular to lanceolate, 0.5–2 × 0.4–1 mm;

lateral lobes of abaxial lip appearing closely associated with medial lobe;

corolla 5–7 × 6–12 mm;

style 5–7 mm.

Capsules

2–3 × 2–3 mm.

Seeds

4, 1.2–3 × 0.7–1 mm.

Tonella floribunda

Phenology Flowering Apr–Jul.
Habitat Open rocky canyons and slopes, open pine forests.
Elevation 30–1600 m. (100–5200 ft.)
Distribution
from FNA
ID; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Populations of Tonella floribunda are concentrated mainly in the Snake River Canyon and close tributaries in west-central Idaho, northeastern Oregon, and southeastern Washington, with scattered, disjunct populations in northern (Shoshone County) and southwestern (Owyhee County) Idaho, and along the Columbia River below its confluence with the Snake River.

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

Source FNA vol. 17, p. 256.
Parent taxa Plantaginaceae > Tonella
Sibling taxa
T. tenella
Name authority A. Gray: in W. H. Brewer et al., Bot. California 1: 556. (1876)
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