Sticky Cinquefoil - Drymocallis glandulosa
Other Names:
Potentilla glandulosa, Drymocallis pseudorupestris, Drymocallis glabrata
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
6
Agency Status
USFWS:
USFS:
BLM:
External Links
Perennial from a mostly branched caudex. Stems erect to ascending, hirsute and glandular-pubescent, 10–70 cm. Leaf blades oblanceolate, pinnately divided into 5 to 7 obovate to suborbicular, glandular, dentate leaflets, 6–60 mm long. Inflorescence a glandular cyme with spreading to ascending branches. Flowers: sepals lanceolate, 4–7 mm long; bracteoles shorter than the sepals; petals 5–10 mm long. Achenes smooth, <1 mm long.
Lesica (2012) treats this species in
Drymocallis and indicates three subspecies for Montana: subsp.
glabrata (Rydb.) Sojak;
subsp.
glandulosa; and subsp.
pseudorupestris (Rydb.) Sojak (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
In general, species of
Drymocallis and
Potentilla can be difficult to identify across their specific ranges because many characteristics are continuous. Variation comes from localized ecotypes, polyploidy genes, hybridization, asexual reproduction without fertilization (apomixis), and/or other sources.
Drymocallis glandulosa - Sticky Cinquefoil
*Basal leaflets typically with 2-5 leaflet pairs.
*Stem leaves typically with 1-4 leaflet pairs.
*Relatively smaller flowers that open widely when compared to
Drymocallis fissa.
*Relatively open inflorescence and ascending to spreading lateral branches when compared to
Drymocallis arguta*Anthers 1 mm or less long.
Drymocallis arguta - Tall Cinquefoil
*Basal leaves typically with 2-5 leaflet pairs.
*Stem leaves typically with 1-4 leaflet pairs.
*May have somewhat smaller flowers that open widely when compared to
Drymocallis fissa.
*Relatively congested inflorescence and lateral branches that are erect or strongly ascending when compared to
Drymocallis arguta*Anthers 1 mm or less long.
Drymocallis fissa - Big-flower Cinquefoil, NOT documented in Montana.
Plants have all of the following characteristics:
*Basal leaves with relatively numerous leaflets (usually 5-6 leaflet pairs), often with additional small ones;
*Stem leaves with 4-6 pairs of leaflets.
*Stem leaves typically with 4-6 leaflet pairs.
*Inflorescence is congested to more-or-less open.
*Large flowers that also open widely;
*Large, elongated anthers, 1-1.4 mm; and
*Thick styles, about 1 mm wide.
