Triantha occidentalis subsp. brevistyla

(C. L. Hitchcock) Packer

Novon 3: 279. 1993.

Endemic
Basionym: Tofieldia glutinosa subsp. brevistyla C. L. Hitchcock Amer. Midl. Naturalist 31: 497, figs. 5, 6. 1944
Synonyms: Tofieldia glutinosa subsp. absona C. L. Hitchcock Tofieldia glutinosa var. absona (C. L. Hitchcock) R. J. Davis Tofieldia glutinosa var. brevistyla (C. L. Hitchcock) C. L. Hitchcock
Treatment appears in FNA Volume 26. Mentioned on page 63.
Revision as of 04:44, 30 July 2020 by imported>Volume Importer
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Stems 10–60 cm, glandular below inflorescence, glands dome-shaped to conical, 1/2–2 times longer than wide, often intermixed with cylindrical hairs 2–4 times longer than wide; sometimes only cylindrical hairs present. Inflorescences spikelike, 3–21-flowered, forming cylindrical-ovoid heads, sometimes interrupted or open, 1–6 cm; bracteoles rarely glandular. Flowers: tepals 3.5–6 mm; stamens 3.5–5 mm; styles 0.6–1.5 mm; pedicel 2–9 mm. Capsules 5–9 mm. Seeds often lobed, 1–2 times longer than wide; appendage usually 1, sometimes absent, to 2 times longer than seed; coat strongly inflated. 2n = 30.


Phenology: Flowering summer.
Habitat: Wet meadows, marshes
Elevation: 0–2400 m

Distribution

V26 33-distribution-map.jpg

Alta., B.C., Alaska, Idaho, Oreg., Wash.

Discussion

With the exception of the retuse tepals, the characteristics by which C. L. Hitchcock (1944) distinguished subsp. absona from the other subspecies that he recognized under Tofieldia glutinosa are commonly found in subsp. brevistyla, and the former is treated here as a disjunct Idaho population of the latter.

Selected References

None.

Lower Taxa

None.

"broad" is not a number."elongating" is not a number."thicker" is not a number.

cordate +  and linear +
0-2 times longer than seed +
John G. Packer +
(C. L. Hitchcock) Packer +
whorled +, opposite +  and alternate +
dilated +
Tofieldia glutinosa subsp. brevistyla +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
symmetrically 3-lobed +  and cleft +
tunicate +  and scaly +
not enclosed +
ovoid +  and broadly ellipsoid +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
inflated +
Alta. +, B.C. +, Alaska +, Idaho +, Oreg. +  and Wash. +
0–2400 m +
dilated +  and flattened +
sessile +  and pedicellate +
unisexual +  and bisexual +
loculicidal +  and septicidal +
ovoid +  and broadly ellipsoid or cylindrical +
membranaceous +  and leathery +
dome-shaped +  and conical +
Wet meadows, marshes +
cylindrical +
cylindrical-ovoid +
open +, interrupted +  and 3-21-flowered +
glandular-pubescent +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0 cm0 mm <br />0 m <br /> (50 cm500 mm <br />0.5 m <br />) +
equitant +  and 2-ranked +
persistent +
rounded +  and acute +
unequal +
apocarpous +  and stipitate +
tapering;ellipsoid +
many;several +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
zygomorphic +  and actinomorphic +
yellowish +  and white +
Flowering summer. +
wind-distributed +
reddish-brown +
1 +  and many +
1 cm10 mm <br />0.01 m <br /> (?) +
adnate +  and free +
staminodial +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glandular +  and glandular-hairy +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
1 +  and several +
distinct +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Tofieldia glutinosa subsp. absona +, Tofieldia glutinosa var. absona +  and Tofieldia glutinosa var. brevistyla +
Triantha occidentalis subsp. brevistyla +
Triantha occidentalis +
subspecies +
persistent +
distinct +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +