Solidago lepida

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 339. 1836.

Common names: Western Canada goldenrod verge d’or élégante
Endemic
Synonyms: Aster lepidus (de Candolle) Kuntze Solidago canadensis var. lepida (de Candolle) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 155. Mentioned on page 110, 150, 151, 153, 157.

Plants 25–150 cm; rhizomes short to long creeping, forming few to many-stemmed clones. Stems 1–25 (–50+), erect, proximally glabrous or sparsely to moderately canescent-villous, distally densely so. Leaves: basal 0; proximal cauline sessile, blades narrowly to broadly oblanceolate, 100–150 × 15–23 mm, tapering to bases, margins subentire to coarsely sharply serrate, 3-nerved, sometimes obscurely so, apices acute to acuminate, abaxial faces glabrate to sparsely short-villous, adaxial glabrous; mid to distal cauline sessile, blades lanceolate to narrowly elliptic, (50–) 90–120 (–150) × (7–) 11–23 (–35) mm, largest near mid-stem, then somewhat reduced distally in arrays, margins sharply and coarsely to finely serrate or entire, usually becoming less serrate near arrays, faces glabrous or sparsely strigoso-villous, more so along abaxial nerves, distalmost (below arrays) sometimes sparsely to moderately minutely stipitate-glandular. Heads 14–800+, in sometimes secund, broadly thyrsiform or secund pyramidal arrays, usually leafy proximally, branches ascending or sometimes arching-spreading, leaves often minutely stipitate-glandular. Peduncles 1–4 mm, villoso-hirtellous, sometimes minutely stipitate-glandular; bracteoles 0–2, linear-lanceolate, sometimes minutely stipitate-glandular. Involucres campanulate, (2–) 2.3–3.8 (–5) mm. Phyllaries in 3–4 series, deltate-lanceolate, unequal (outer 1/4–1/2 length of inner), margins sparsely villoso-ciliate, sometimes minutely stipitate-glandular apically or basally, apices acute to attenuate, glabrous or sparsely to moderately, minutely stipitate-glandular apically, sometimes over much of faces. Ray-florets (7–) 10–16 (–22); laminae (0.5–) 0.9–1.6 (–2.2) × ca. 0.2–0.5 mm. Disc-florets (2–) 5–9 (–13); corollas ca. (2–) 2.5–3.8 (–5) mm, lobes (0.4–) 0.6–1 (–1.4) mm. Cypselae (narrowly obconic) 0.6–1.2 mm, strigillose; pappi 2.5–3.3 mm.

Distribution

V20-334-distribution-map.gif

Alta., B.C., Man., N.B., N.W.T., Nfld. and Labr. (Nfld.), Ont., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., N.Mex., Nev., Utah, Wash., Wyo.

Discussion

Subspecies 2 (2 in the flora).

Solidago lepida is the only member of subsect. Triplinerviae that is nearly always minutely, sometimes sparsely, stipitate-glandular in the arrays. These glands can be very small and visible only with 30–70× magnification. The enlarged head of the stalked gland may be little bigger than a pollen grain. The species occurs in the west from the Aleutian Islands and central Alaska south just into northern California, and in the Rocky Mountains to Arizona and New Mexico. Its range extends across Canada to Newfoundland, the Gaspé (Quebec), and northern New Brunswick. It also appears to be introduced at scattered locations across the Canadian prairies.

Selected References

None.

Key

1 Distal cauline leaves usually with 6–8 teeth per side; phyllaries very sparsely, minutely stipitate-glandular along proximal margins; e Canada (Solidago lepida subsp. fallax) 61b.Solidago lepida subsp. fallax
1 Distal cauline leaves usually with 0–6 teeth per side (plants of w mountains in United States sometimes more serrate); phyllaries, peduncles, peduncle bracts and/or distalmost cauline leaves sparsely to moderately, minutely stipitate-glandular; mountains, Alaska to Arizona and New Mexico, and across Canada, scattered eastward to the Gaspé, Quebec (S. lepida subsp. lepida) > 2
2 Heads in thyrsiform arrays, proximal branches ascending; much of range 61a.Solidago lepida var. lepida
2 Heads in pyramidal paniculiform arrays, proximal branches arching to recurved; Rocky Mountains and Cascade Mountains, Alberta and British Columbia to California, Arizona, New Mexico 61a.Solidago lepida var. salebrosa
... more about "Solidago lepida"
glabrate +  and sparsely short-villous +
not tailed +, rounded +  and obtuse +
distinct +
stipitate-glandular +, glabrous or +  and sparsely moderately +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
secund +  and thyrsiform +
indeterminate +  and determinate +
pyramidal +
John C. Semple +  and Rachel E. Cook +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
not persisting +
decurrent +
Triplinerviae +
compound +  and simple +
12 cm120 mm <br />0.12 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2.3 cm23 mm <br />0.023 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
9 cm90 mm <br />0.09 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;narrowly elliptic +
largest +
11mm;23mm +
rugulose +  and muricate +
stipitate-glandular +
linear-lanceolate +
secund +, leafy +  and thyrsiform-paniculiform +
arching-spreading;ascending +
cone--shaped +
Western Canada goldenrod +  and verge d’or élégante +
not 2-lipped +  and actinomorphic +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
yellow +  and white +
ampliate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
stipitate-glandular +
Alta. +, B.C. +, Man. +, N.B. +, N.W.T. +, Nfld. and Labr. (Nfld.) +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Nev. +, Utah +, Wash. +  and Wyo. +
resinous +
strigoso-villous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.9mm;1.6mm +
0.2mm;0.5mm +
stipitate-glandular +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
erect;spreading +
triangular +  and narrowly lanceolate +
serrate +  and entire +
stipitate-glandular +
subentire to coarsely +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
stipitate-glandular +  and villoso-hirtellous +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not persisting +
stipitate-glandular +
deltate-lanceolate +
ovate-oblanceolate +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
1 +  and 25 +
appendaged +  and truncate +
papillate +  and smooth +
Aster lepidus +  and Solidago canadensis var. lepida +
Solidago lepida +
Solidago subsect. Triplinerviae +
species +
not persisting +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +