Gentiana andrewsii

closed gentian - Gentiana andrewsii 14SE01-01
closed gentian - Gentiana andrewsii 09SE02

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characteristics

Perennial with thick roots that penetrate deep underground. Multiple stems may emerge from the taproot. Maroon coloured stems are smooth and unbranched. Stalkless, lance shaped leaves — also smooth — have a glossy appearance. Clusters of blue flowers grow at the stem end or in the axis of the top leaves. Five parted flowers are bottle shaped with closed tops and a fold between the petals; they turn purple as they age. Fruit is an elliptic capsule with numerous flat, winged, smooth seeds. Takes three years from germination to flower.

Also known as bottle gentian.

9,000,000 seeds/pound; starts from seed, container.

T SSN H W sun soil H2O fire N2 pH summer fall flower (seed)
P WY 0.6 0.2 S/PS F-C M-W •• - 5.8-7.2 green maroon gray purple

habitat

Moist thickets, meadows, forest clearings.

uses

Bumblebees navigate into the closed petals to collect nectar and pollinate the flowers. Plants are a food source for groundhogs and some insects.

North American aboriginals used a compress made from the roots for back pain and to treat snakebites.

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common > name = have on site
T = type: A = annual | B = biennial | P = perennial | SS = subshrub | D = deciduous | C = coniferous
██ = cold stratify | ██ = cold stratify & scarify | ██ = plant directly | ██ = scarify | ██ = not from seed
SSN = season: C = cool | W = warm | Y = late
H = height (in metres) | W = width (in metres) | B = bunch | S = sod | SB = sod/bunch
sun: S = full sun | S/PS = sun or partial shade | PS = partial shade | SH = full shade
soil: F = fine | M = medium | C = coarse
H2O = moisture requirement: D = dry | M = moist | W = wet | Z = aquatic
fire = fire tolerance: - = unknown | X = none | = some | •• = moderate | ••• = high tolerance
N2 = nitrogen fixing: = yes
summer = foliage colour | fall = foliage (stem) colour | flower (seed) = flower (seed / fruit) colour, if conspicuous
pH = acidity - alkalinity