Potentilla glaucophylla

Lehmann

Index Seminum (Hamburg) 1836: 7. 1836.

Common names: Blueleaf cinquefoil vari-leaved cinquefoil
EndemicIllustrated
Synonyms: Potentilla diversifolia var. glaucophylla (Lehmann) Lehmann
Treatment appears in FNA Volume 9. Treatment on page 152. Mentioned on page 151, 153, 155, 160, 172, 178, 189, 216.

Glands absent or inconspicuous, uncolored. Stems mostly ± ascending, 0.5–3 (–4.5) dm. Basal leaves often 2-ranked, palmate, sometimes subpalmate, 2–20 cm; petiole (0.5–) 1–8 (–14) cm, long hairs often absent, sometimes sparse to abundant, usually appressed, 1–2 mm, weak to ± stiff, short, crisped, and cottony hairs absent, glands absent or sparse; leaflets 5–6 (–7), sometimes with 1–2 (–4) additional, smaller, entire leaflets, on tip or to distal 1/10 (–1/4) of leaf axis, separate, largest ones oblanceolate or cuneate to obovate, 1–4 (–6) × 0.5–1.5 (–2) cm, margins flat, distal 1/3–1/2 (–2/3) ± evenly incised 1/2 or nearly to midvein, undivided medial blade 1.5–7 (–10) mm wide, teeth 1–3 (–5) per side, broadly lanceolate or linear to narrowly oblong, 1–5 (–8) mm, surfaces similar adaxial ± less hairy, ± blue-green, usually glaucous, long hairs sparse to abundant (often restricted to veins, distal teeth, and margins), short, crisped, and cottony hairs absent, glands absent or sparse. Cauline leaves (0–) 1–2 (–3). Inflorescences 2–10 (–20) -flowered. Pedicels (0.5–) 1–3 (–6.5) cm. Flowers: epicalyx bractlets lanceolate to elliptic, 2–5 × 0.8–1.2 (–1.6) mm, hairs sparse to common, rarely abundant, ± ascending, glands absent or inconspicuous; hypanthium 3.5–5 mm diam.; sepals (2–) 2.5–4.5 (–5) mm, apex acute to short acuminate; petals (4–) 5–10 (–12) × 4–9 (–10) mm; filaments 1.5–2.5 (–3) mm, anthers 0.4–0.7 (–0.9) mm; carpels 25–40, styles filiform above papillate-swollen base, 1.5–2.5 (–3) mm. Achenes 1.2–1.6 mm.

Distribution

V9 220-distribution-map.jpg

Alta., B.C., N.W.T., Nfld. and Labr., Sask., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Varieties 2 (2 in the flora).

Potentilla glaucophylla replaces P. diversifolia; an examination of the lectotype of the latter confirms J. Soják’s (1996) conclusion that P. diversifolia applies to a hybrid involving P. glaucophylla and P. hippiana. Historically, this species was often termed P. dissecta Pursh, a misapplied name that has been rejected (B. Ertter et al. 2008).

In addition to the nomenclatural change, the circumscription of Potentilla glaucophylla is here restricted to plants with usually glaucous, blue-green, distally toothed leaflets that are usually glabrate (at least in var. glaucophylla). Plants from the Colorado Plateau and southern Rocky Mountains formerly included in this species and having dark green leaves, more leaflet teeth, and larger anthers are transferred either to P. townsendii or to a currently undescribed entity.

The two-ranked leaves of Potentilla glaucophylla suggest a possible connection to P. crantzii in sect. Aureae.

Selected References

None.

Key

1 Leaflets incised 1/3–1/2 to midvein, teeth broadly lanceolate; range of species. Potentilla glaucophylla var. glaucophylla
1 Leaflets incised 3/4+ to midvein, teeth linear to narrowly oblong; northern Rocky Mountains. Potentilla glaucophylla var. perdissecta

"dm" is not declared as a valid unit of measurement for this property.

... more about "Potentilla glaucophylla"
stiff +  and weak +
1.2mm +  and 1.6mm +
stiff +  and weak +
glaucous +  and hairy +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Barbara Ertter +  and James L. Reveal +
Lehmann +
subpalmate +  and palmate +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
papillate-swollen +
Graciles +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
less cordate or reniform +  and narrowly elliptic +
0.5 cm5 mm <br />0.005 m <br /> (25 cm250 mm <br />0.25 m <br />) +
coriaceous +
reduced +
free +  and distinct +
hairy +  and glabrous +
Blueleaf cinquefoil +  and vari-leaved cinquefoil +
Alta. +, B.C. +, N.W.T. +, Nfld. and Labr. +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
not +  and aggregated +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lanceolate +  and elliptic +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
deciduous +
on style scar +, hairy +  and glabrous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
inconspicuous +
stoloniferous +  and short-rhizomatous +
blue-green +, green +  and grayish +
straight +
weak +  and more or less stiff +
abundant +, sparse +  and common +
crisped +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2-10(-20)-flowered +
crassinucellate +
bipinnate +, odd-pinnate +, subpalmate +, palmate +  and ternate +
opposite +  and alternate +
stiff +  and weak +
marcescent +
well-developed +
persistent +
cauline +  and basal +
reduced +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
cuneate +  and obovate +
smaller +  and largest +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
linear +  and oblanceolate +
palmate +  and pinnate +
blue-green +, green +  and grayish +
stiff +  and weak +
nearly +, 1/2 +, 1/3 +  and 1/2-2/3 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
blue-green +, green +  and grayish +
stiff +  and weak +
inferior +  and superior +
clustered +, biseriate +  and superposed +
3 cm30 mm <br />0.03 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
free +  and distinct +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
usually longer +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
8 cm80 mm <br />0.08 m <br /> (14 cm140 mm <br />0.14 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
adnate +, free +, connate +  and distinct +
subpinnate +, palmate +  and subpalmate +
not flagelliform +
2 cm20 mm <br />0.02 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Index Seminum (Hamburg) +
not arillate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +  and broadly ovate or deltate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
stiff +  and weak +
Endemic +  and Illustrated +
free +  and distinct +
not rooting +
reddish +  and green +
(1.5-)2-4 times basal leaves +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
linear;ovate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
deciduous +
distinct +
subapical +
filiform +
rough-thickened +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
blue-green +, green +  and grayish +
stiff +  and weak +
incised +, flat +  and more or less revolute +
Potentilla diversifolia var. glaucophylla +
not fleshy-thickened +
Potentilla glaucophylla +
Potentilla sect. Graciles +
species +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
blue-green +, green +  and grayish +
stiff +  and weak +
1 +  and 3 +
linear +  and narrowly oblong +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
inconspicuous +
enlarged +
biennial +, annual +  and perennial +
herb +  and matted +