Saussurea triangulata

Trautvetter & C. A. Meyer in A. T. von Middendorff

in A. T. von Middendorff, Reise Siber. 1(2,3): 58. 1856.

Treatment appears in FNA Volume 19. Treatment on page 166. Mentioned on page 165.

Plants 30–70 cm; from rhizomes. Stems leafy, simple or with ascending branches. Leaves basal and cauline, well distributed or distally much smaller, proximal and mid with winged petioles to 15 cm, not decurrent on stems, proximal petioles ciliate with multicellular trichomes, distal petioles loosely tomentose when young, glabrescent; blades lanceolate to triangular-ovate, 6–13 cm, bases truncate or subcordate to obtuse or subacute, margins coarsely laciniate-dentate, ciliate with multicellular trichomes, apices acute or acuminate, faces glabrous; mid and distal progressively smaller, becoming sessile, narrower, bases obtuse to acuminate, cauline usually 15 or fewer. Heads 4–11, in congested corymbiform to capitate terminal arrays (peduncles 0–4 cm). Involucres 10–12 mm. Phyllaries in 4–5 series, unequal, appressed throughout, the outer ovate, inner narrowly lanceolate, abaxially dark purplish to nearly black, with or without central green or tan patch, margins loosely arachnoid-tomentose, apices acute to obtuse or rounded, faces glabrate. Receptacles scaly. Florets 10–17; corollas light purple, goblet-shaped, 9–11 mm; tubes 4–5.5 mm, throat 2 mm, lobes 3–3.5 mm; anthers dark purple, 4–5 mm; style-branches recurved, 1–1.5 mm. Cypselae ca. 3 mm; pappi brownish, outer bristles very slender, 0.5–4 mm, inner 14–17 bristles stouter, 8–9 mm, all plumose. 2n = 26 (Russia).


Phenology: Flowering Jul–Aug.
Habitat: Slopes, ridges, sometimes in shade
Elevation: 300–400 m

Distribution

V19-174-distribution-map.gif

Alaska, Russian Far East (Chukotka)

Discussion

In North America Saussurea triangulata is known only from the Waring Mountains of northwestern Alaska, where it was discovered in the late 1990s. I provisionally recognize the Waring Mountains plants as a disjunct population of S. triangulata pending examination of additional material from both Alaskan and Siberian populations.

Selected References

None.

Lower Taxa

None.

"fine" is not a number."narrower" is not a number.

... more about "Saussurea triangulata"
short-tailed +
dark purple +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not +  and appendaged +
entire +  and not spine-tipped +
glandular +  and glabrous +
acute;obtuse or rounded +
scarious +
indeterminate +  and determinate +
David J. Keil +
Trautvetter & C. A. Meyer in A. T. von Middendorff +
obtuse +  and acuminate +
Asteraceae tribe Cynareae +
compound +  and simple +
dentate to pinnately lobed +  and entire +
lanceolate;triangular-ovate +
6 cm60 mm <br />0.06 m <br /> (13 cm130 mm <br />0.13 m <br />) +
10-nerved or 20-nerved +  and rugose +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
actinomorphic +
light purple +
goblet--shaped +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
4-5-angled +, cylindric +, angled +  and oblong +
fertile +  and bisexual +
glabrescent +  and tomentose +
Alaska +  and Russian Far East (Chukotka) +
300–400 m +
eglandular +  and glandular +
glabrate +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Slopes, ridges, sometimes in shade +
in corymbiform arrays +  and singly +
indeterminate +
glabrescent +  and tomentose +
each +  and sessile +
ovoid;campanulate or more or less turbinate +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
petiolate +  and sessile +
distributed +
mid +, proximal +, cauline +  and basal +
not decurrent +
smaller +
deltate +, usually narrowly triangular +  and more or less linear +
arachnoid-tomentose +
lobed +, toothed +  and entire +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2-carpellate +
persistent +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering Jul–Aug. +
papillate +  and smooth +
distinct +  and fused +
short-papillate +
oblong;linear +
in A. T. von Middendorff, Reise Siber. +
naked +  and epaleate +
convex;flat +
roughened +  and smooth +
exalbuminous +
subequal;strongly unequal +
with ascending branches +, simple +  and leafy +
ascending +  and erect +
appendaged +  and truncate +
dilated +  and swollen +
enlarged +
Compositae +
Saussurea triangulata +
Saussurea +
species +
corymbiform to capitate +
2 cm20 mm <br />0.02 m <br /> (?) +
expanded +  and slender +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
5 cm50 mm <br />0.05 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
19 +, 18 +, 17 +, 16 +, 14 +  and 13 +