Potentilla subviscosa var. ramulosa

(Rydberg) Kearney & Peebles

J. Wash. Acad. Sci. 29: 481. 1939.

Endemic
Basionym: Potentilla ramulosa Rydberg Bull. Torrey Bot. Club 23: 430, plate 276. 1896
Treatment appears in FNA Volume 9. Treatment on page 184.

Stems (0.2–) 0.4–1.5 (–2) dm. Basal leaves not notably seasonally dimorphic, 2–7 (–15 in late-season) cm; petiole 1–5 (–11 in late-season) cm, long hairs 2–3 (–4) mm (abundant all seasons); central leaflets obovate-cuneate to lanceolate, 1–2.5 (–5 in late-season) cm, ± evenly incised 1/4–1/2 to midvein, teeth 2–4 (–6 in late-season) per side. Flowers: sepals (2.5–) 3.5–5 (–6) mm; petals 3–5 (–8) mm. Achenes 1.5–2 mm, lightly rugose, with small scar.


Phenology: Flowering Apr–Aug.
Habitat: Open conifer woodlands, edges of decomposing granite outcrops
Elevation: 1800–2700 m

Discussion

Variety ramulosa is the primary representative of sect. Subviscosae in the Rincon and Santa Catalina ranges in Pima County (the only other being Potentilla albiflora). Comparable plants have been collected on Aztec Peak in the Sierra Ancha of Gila County, where they overlap the range of and possibly intergrade with var. subviscosa. Intermediates also occur in the nearby Mazatzal Range and Fort Apache Indian Reservation. Historic collections of var. ramulosa exist from the Chiricahua, Huachuca, and Santa Rita ranges in Cochise and Santa Cruz counties, apparently from lower elevations than the known populations of P. rhyolitica.

Selected References

None.

Lower Taxa

None.

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

1.5mm +  and 2mm +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Barbara Ertter +
(Rydberg) Kearney & Peebles +
ternate +  and palmate +
opposite +  and alternate +
7 cm70 mm <br />0.07 m <br /> (18 cm180 mm <br />0.18 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Potentilla ramulosa +
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 +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
incised +, obovate-cuneate +  and lanceolate +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not +  and aggregated +
1800–2700 m +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
5-merous +, racemiform +, open +, cymose +  and 2-10(-20)-flowered +
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 />) +
Open conifer woodlands, edges of decomposing granite outcrops +
stoloniferous +  and short-rhizomatous +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
straight +
sparse +  and common +
crisped +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
differentiated +
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 />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 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 />) +
(1-)3-15-flowered +
crassinucellate +
bipinnate +, odd-pinnate +, subpalmate +, palmate +  and ternate +
opposite +  and alternate +
marcescent +
well-developed +
persistent +
cauline +  and basal +
reduced +
separate +  and slightly overlapping +
orbiculate +, elliptic +  and broadly obovate or cuneate +
linear +  and oblanceolate +
palmate +  and pinnate +
1/5 +  and 3/4 +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
free +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
5 cm50 mm <br />0.05 m <br /> (11 cm110 mm <br />0.11 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering Apr–Aug. +
adnate +, free +, connate +  and distinct +
palmate +  and ternate +
10 cm100 mm <br />0.1 m <br /> (18 cm180 mm <br />0.18 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
usually not much longer +
J. Wash. Acad. Sci. +
not arillate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +  and broadly ovate or deltate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
free +  and distinct +
not rooting +
reddish +  and green +
1-3(-5) times basal leaves +
prostrate to decumbent +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
deciduous +
distinct +
subapical +
papillate-swollen +, tapered-columnar +  and filiform +
rough-thickened +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not glaucous +
Potentilla subviscosa var. ramulosa +
Potentilla subviscosa +
variety +
2 +  and 4 +
inconspicuous +
enlarged +
tufted +  and rosetted +
biennial +, annual +  and perennial +
herb +  and matted +