Potentilla erecta

(Linnaeus) Raeuschel

Nomencl. Bot, 152. 1797.

Common names: Erect cinquefoil tormentil
Introduced
Basionym: Tormentilla erecta Linnaeus Sp. Pl. 1: 500. 1753
Treatment appears in FNA Volume 9. Treatment on page 136. Mentioned on page 133, 135, 143.

Rootstocks erect to horizontal, irregularly thickened, 1–8 cm. Stems mostly ascending to erect, not flagelliform, openly branched, not rooting at nodes, (0.5–) 1–5 (–7) dm. Basal leaves ephemeral, usually ternate, 2–15 cm; petiole (1–) 3–13 cm, long hairs sparse to common, appressed, 0.5–1 mm, stiff, glands absent; leaflets 3 (–5), central ± obovate to cuneate, (0.5–) 1–2 × (0.3–) 1–1.5 cm, distal 1/2–2/3 of margin incised ± 1/3 to midvein, teeth 2–4 per side, surfaces similar, green (abaxial sometimes paler), glabrate or sparsely to moderately hairy. Cauline leaves (0–) 1–3 (–7) proximal to 1st flowering node, expanded at anthesis, usually ternate, rarely palmate (or appearing so because of leafletlike stipules), (0.5–) 1–3 cm; petiole usually 0 cm; leaflets 3 (–5), usually much narrower than those of basal leaves, narrowly cuneate to oblanceolate, (0.5–) 1–3 × (0.2–) 0.5–1 cm, distal 1/3–2/3 of margin incised ± 1/2 to midvein, teeth 2–4 (–6) per side, apex usually obtuse to acute. Inflorescences 3–30-flowered, cymose, open. Pedicels (1–) 2–3 (–5) cm. Flowers 4 (–5) -merous; epicalyx bractlets ovate to narrowly elliptic, 1.5–4 × 0.5–1 mm, much smaller than to sometimes equal to sepals; hypanthium 1.5–2.5 mm diam.; sepals (2–) 3–5 mm, apex broadly acute; petals (2–) 4–6 × (1.5–) 3–6 mm, apex ± retuse; stamens 15–20, filaments 2–3.8 mm, anthers 0.4–0.6 mm; carpels 4–8 (–20), styles 0.9–1.4 mm. Achenes 1.2–2 mm, rugose. 2n = 28 (Eurasia).


Phenology: Flowering unknown.
Habitat: Moist, mossy flats and slopes, acidic soil
Elevation: 0–100 m

Distribution

V9 195-distribution-map.jpg

Introduced; N.S., Mass., Europe, w Asia, n Africa, Atlantic Islands (Azores)

Discussion

Although included here, Potentilla erecta is questionably extant as a naturalized species in North America and is not currently known from Newfoundland where historically reported. It is a medicinal plant called tormentil, high in tannins and strongly astringent. A tea made from the tuberous rootstock is widely used in Europe and parts of Asia for diarrhea, dysentery, sore throats, and related problems. A decoction is a mild antibiotic used for cuts and minor infections, especially as an anti-inflammatory for gingivitis and other gum problems. The rootstock is used as a red dye.

Another synonym with a long history of use is Potentilla tormentilla Necker, illegitimate by virtue of being superfluous.

Selected References

None.

Lower Taxa

None.

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

... more about "Potentilla erecta"
silvery white +  and green +
1.2mm +  and 2mm +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Barbara Ertter +  and James L. Reveal +
(Linnaeus) Raeuschel +
opposite +  and alternate +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
ephemeral +  and persistent +
Tormentilla erecta +
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 />) +
reduced +
free +  and distinct +
hairy +  and glabrous +
palmate +  and ternate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1/3 +, 1/2 +  and 2/3 +
less obovate +  and cuneate +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Erect cinquefoil +  and tormentil +
N.S. +, Mass. +, Europe +, w Asia +, n Africa +  and Atlantic Islands (Azores) +
not +  and aggregated +
0–100 m +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
ovate +  and narrowly elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.38 cm3.8 mm <br />0.0038 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 />) +
Moist, mossy flats and slopes, acidic soil +
stoloniferous +  and short-rhizomatous +
straight +
appressed +  and spreading +
sparse +  and common +
crisped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 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 />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 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 />) +
open +, cymose +  and 3-30-flowered +
crassinucellate +
bipinnate +, odd-pinnate +, subpalmate +, palmate +  and ternate +
opposite +  and alternate +
marcescent +
well-developed +
persistent +
cauline +  and basal +
reduced +
separate +  and slightly overlapping +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
narrowly cuneate +  and oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
linear +  and oblanceolate +
palmate +  and pinnate +
1/4 +  and 1/2 +
inferior +  and superior +
clustered +, biseriate +  and superposed +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
curved +  and straight +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
free +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
usually longer +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering unknown. +
adnate +, free +, connate +  and distinct +
palmate +  and ternate +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Nomencl. Bot, +
erect +  and horizontal +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
not arillate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +  and broadly ovate or deltate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Introduced +
free +  and distinct +
not rooting +  and branched +
reddish +  and green +
(1-)2-10+ times basal leaves +
mostly ascending +  and erect +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
deciduous +
distinct +
subapical +
papillate-swollen +, columnar-clavate +  and more or less filiform +
rough-thickened +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
glabrate or +  and sparsely moderately hairy +
Potentilla sect. Tormentilla +  and Undefined sect. Tormentilla +
Potentilla erecta +
Potentilla sect. Potentilla +
species +
2 +  and 4 +
inconspicuous +
enlarged +
biennial +, annual +  and perennial +
herb +  and matted +