Balsamorhiza sagittata

(Pursh) Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 350. 1840.

IllustratedEndemic
Basionym: Buphthalmum sagittatum Pursh Fl. Amer. Sept. 2: 564. 1813
Synonyms: Balsamorhiza helianthoides (Nuttall) Nuttall Espeletia helianthoides Nuttall Espeletia sagittata (Pursh) Nuttall
Treatment appears in FNA Volume 21. Treatment on page 95. Mentioned on page 93, 97, 98.

Plants (15–) 20–40 (–65) cm. Basal leaves: blades ± silvery to white or gray-green, rounded-deltate or deltate to triangular-deltate, 5–25 × 3–15 cm, bases ± cordate, margins entire, apices acute to attenuate, faces sericeous, tomentose, tomentulose, or velutinous (at least abaxially, usually glanddotted as well), sometimes glabrescent. Heads usually borne singly, sometimes 2–3+. Involucres hemispheric to turbinate, 12–25 mm diam. Outer phyllaries lanceolate to oblanceolate or linear, (15–) 20–25 (–30+) mm, equaling or surpassing inner, apices acute to acuminate. Ray laminae 20–40 mm. 2n = 38.


Phenology: Flowering (Apr–)May–Jun(–Jul).
Habitat: Openings, banks, flats, meadows, ridges, sagebrush scrub, conifer forests
Elevation: (100–)900–2500(–3000) m

Distribution

V21-219-distribution-map.gif

Alta., B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Balsamorhiza sagittata grows east of the Cascade-Sierra axis to the Rocky Mountains and Black Hills. It is one of the more spectacular of all spring-flowering plants in the northwestern United States. Hybrids occur along lines of contact between B. sagittata and almost all species of sect. Balsamorhiza except B. macrophylla (a high polyploid).

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Balsamorhiza sagittata"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
less corymbiform +  and racemiform +
indeterminate +  and determinate +
William A. Weber +
(Pursh) Nuttall +
bristlelike +
coroniform +
corrugated +
cordate +
Buphthalmum sagittatum +
compound +  and simple +
less silvery +  and white or gray-green +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
deltate;triangular-deltate +
3cm;15cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange +
hairy +  and glabrous +
3-4-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
(100–)900–2500(–3000) m +
glabrescent +, velutinous +, tomentulose +, tomentose +  and sericeous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Openings, banks, flats, meadows, ridges, sagebrush scrub, conifer forests +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
hemispheric;turbinate +
alternate +  and opposite +
deltate +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
lanceolate +  and oblanceolate or linear +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
surpassing inner phyllaries +  and equaling +
2-carpellate +
persistent +
Flowering (Apr–)May–Jun(–Jul). +
8 +  and 20 +
unequal +  and subequal +
Trans. Amer. Philos. Soc., n. s. +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Balsamorhiza helianthoides +, Espeletia helianthoides +  and Espeletia sagittata +
Balsamorhiza sagittata +
Balsamorhiza subg. Artorhiza +
species +
cylindric +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
45 cm450 mm <br />0.45 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +