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bastard toad-flax (var. umbellata), bastard-toadflax, California comandra (var. Californica), pale comandra (var. pallida)

Photo is of parent taxon

bastard toad-flax

Habit Herbs or subshrubs, 7–40 cm.
Rhizomes

cortex white to beige.

Aerial stems

usually branched, sometimes much-branched at base;

proximal portions overwintering or not.

Leaves

blades light green to grayish or bluish green, lanceolate, elliptic, or ovate, 0.7–5.3 cm, apex obtuse, acute, or acuminate.

blade green, paler abaxially, not glaucous, lanceolate, oblanceolate, elliptic, or ovate, 0.7–5(–7.6) cm, thin, soft, base attenuate to acute, margins often slightly revolute, apex obtuse, sometimes apiculate;

midrib and lateral veins conspicuous, protruding on abaxial surface.

Pedicels

0–1.4 mm.

Flowers

hypanthium base not dilated.

funnel-shaped to almost rotate;

petals lanceolate, lanceolate-oblong, or ovate, 2–3 mm;

anthers 0.5 mm.

Pseudodrupes

dark to light brown, sometimes red-tinged, not glaucous, subglobose to globose, 4–6 mm, smooth.

2n

= 28.

Comandra umbellata

Comandra umbellata subsp. umbellata

Phenology Flowering Mar–Aug.
Habitat Swamps and bogs, rich mesic sites, dry, sandy or rocky soils, savannas, early successional forests.
Elevation 0–700 m. (0–2300 ft.)
Distribution
from FNA
AL; AR; AZ; CA; CO; CT; DC; DE; GA; IA; ID; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NS; NT; ON; PE; QC; SK; YT; n Mexico; s Europe (Balkan peninsula)
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NH; NJ; NY; OH; OK; PA; RI; SC; SD; TN; VA; VT; WI; WV; AB; BC; MB; NB; NL; NS; ON; PE; QC; SK
[BONAP county map]
Discussion

Subspecies 4 (3 in the flora).

Comandra umbellata is likely the most widespread Santalales species, occurring throughout the United States, southern Canada, and northern Mexico as well as in the Balkan peninsula, where subsp. elegans (Rochel ex Reichenbach) Piehl occurs. Comandra umbellata is the alternate host for comandra blister rust (Cronartium comandrae), which damages pines in North America.

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

As discussed by M. A. Piehl (1965), subsp. umbellata exhibits a wide range of morphological variation, which has prompted various authors to name numerous species and subspecies. A common example is Comandra richardsiana, which according to M. L. Fernald (1950) represents a western and northern extreme form with a corymbose inflorescence with cymule branches ascending versus a paniculate inflorescence with cymule branches divergent. Intermediate forms between subsp. umbellata and subsp. pallida are reported from Alberta, British Columbia, Manitoba, Saskatchewan, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota.

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

Key
1. Leaf blades thin, green, not glaucous; pseudodrupes 4–6 mm; rhizome cortex white to beige; Canada, c, e United States.
subsp. umbellata
1. Leaves thin or thick, becoming ± succulent, green to grayish or bluish green, glaucous; pseudodrupes 5–9 mm; rhizome cortex blue, drying blackish; w North America.
→ 2
2. Leaf blade lateral veins obscure on abaxial surface; proximal part of aerial stems not overwintering; herbs 5–33 cm.
subsp. pallida
2. Leaf blade lateral veins apparent on abaxial surface; proximal part of aerial stems overwintering; subshrubs 15–40 cm.
subsp. californica
Source FNA vol. 12, p. 409. FNA vol. 12, p. 409.
Parent taxa Comandraceae > Comandra Comandraceae > Comandra > Comandra umbellata
Sibling taxa
C. umbellata subsp. californica, C. umbellata subsp. pallida
Subordinate taxa
C. umbellata subsp. californica, C. umbellata subsp. pallida, C. umbellata subsp. umbellata
Synonyms Thesium umbellatum C. richardsiana
Name authority (Linnaeus) Nuttall: Gen. N. Amer. Pl. 1: 157. (1818) unknown
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