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Gentiana newberryi

alpine gentian, Newberry's gentian

broad-petal gentian

Habit Herbs perennial, 0.1–1.5(–3.5) dm (below flowers), glabrous. Herbs perennial, 0.5–3.5 dm, glabrous.
Stems

1–5, arising laterally below rosettes, from a stout tap root, tufted, decumbent.

1–5, terminal from caudex, erect or nearly so.

Leaves

basal and cauline;

blades of basal rosette and proximal cauline leaf blades widely spatulate to obovate or oblanceolate, 0.8–5 cm × 2–25 mm, apex obtuse or mucronate, at least these leaves with blades less than 6 times as long as wide, distal cauline leaves few, with blades oblanceolate to lanceolate or linear, 2–5 cm × 2–5 mm, apices acute.

cauline, ± evenly spaced;

blade widely ovate to elliptic, 1.5–4 cm × 8–22 mm, apex obtuse.

Inflorescences

terminal, flowers usually solitary, occasionally 2 or 3.

solitary flowers or occasionally a terminal pair.

Flowers

calyx 14–30 mm, lobes linear to narrowly ovate, (4–)6–12 mm, margins not ciliate;

corolla white or blue, campanulate, open, 23–55 mm, lobes spreading, elliptic-obovate, 7–17 mm, free portions of plicae divided into 2 triangular, serrate to lacerate segments;

anthers distinct.

calyx 8–12 mm, tube cleft to base or nearly so into 2 spathaceous segments, lobes elliptic to ovate-lanceolate, 0.5–5 mm, margins not ciliate;

corolla bright blue, campanulate, open, 30–38 mm, lobes widely ovate-triangular, 6–11 mm, free portions of plicae spreading, low-triangular, less than 1 mm, notched at apex, otherwise entire;

anthers distinct.

Seeds

winged.

not winged.

Gentiana newberryi

Gentiana platypetala

Phenology Flowering late summer.
Habitat Alpine and coastal mountain meadows, heathlands, rocky and boggy slopes.
Elevation 0–1400(–2100) m. (0–4600(–6900) ft.)
Distribution
from USDA
w United States
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; BC
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

The two varieties of Gentiana newberryi intergrade extensively. The most distinctive form of var. newberryi, with relatively tall stems and medium to deep blue corollas, occurs in the northern part of the range of the species, from the Klamath and White mountains of California north into Oregon. Plants most clearly referable to var. tiogana prevail in the southern part of the range of the species, from Butte County south to Inyo and Tulare counties, California. In the central part of the range of the species, plant size and corolla color are less consistently correlated, with occasional plants combining low stature with deep blue corollas or tall stems with predominantly white or pale blue corollas. In that part of the range, corolla color may be highly variable within a single population.

The leaves of Gentiana newberryi are thick-textured and distinctively concave, usually spoon-shaped, when fresh. Narrower leaves sometimes occur in var. tiogana, but many plants of that variety have widely spatulate leaves like those of var. newberryi.

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

Gentiana platypetala is restricted to sites near the Pacific largely confined to the insular ranges of British Columbia and southern Alaska from northern Vancouver Island, Queen Charlotte Islands, and Alice Arm, British Columbia, northwest to Kodiak Island, Alaska, but occasionally on mainland coastal ranges.

The distinctive spathaceous calyces of this species are strongly suffused with reddish purple.

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

Key
1. Corollas medium to deep blue with greenish to dark purple lines abaxially on and below lobes, usually 35–55 mm.
var. newberryi
1. Corollas white to pale blue except for greenish to dark purple lines abaxially on and below lobes, usually 23–42 mm.
var. tiogana
Source FNA vol. 14. FNA vol. 14.
Parent taxa Gentianaceae > Gentiana Gentianaceae > Gentiana
Sibling taxa
G. affinis, G. algida, G. andrewsii, G. austromontana, G. autumnalis, G. calycosa, G. catesbaei, G. clausa, G. decora, G. douglasiana, G. flavida, G. fremontii, G. glauca, G. latidens, G. linearis, G. nivalis, G. parryi, G. pennelliana, G. platypetala, G. plurisetosa, G. prostrata, G. puberulenta, G. rubricaulis, G. saponaria, G. sceptrum, G. setigera, G. villosa
G. affinis, G. algida, G. andrewsii, G. austromontana, G. autumnalis, G. calycosa, G. catesbaei, G. clausa, G. decora, G. douglasiana, G. flavida, G. fremontii, G. glauca, G. latidens, G. linearis, G. newberryi, G. nivalis, G. parryi, G. pennelliana, G. plurisetosa, G. prostrata, G. puberulenta, G. rubricaulis, G. saponaria, G. sceptrum, G. setigera, G. villosa
Subordinate taxa
G. newberryi var. newberryi, G. newberryi var. tiogana
Synonyms G. covillei, G. gormanii
Name authority A. Gray: Proc. Amer. Acad. Arts 11: 84. (1876) Grisebach in W. J. Hooker: Fl. Bor.-Amer. 2: 58. (1837)
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