Primula rusbyi Greene

Rusby's primrose (en)

Species

Angiosperms > Ericales > Primulaceae > Primula

Characteristics

Plants 10-20 cm, herbaceous; rhizomes stout, short; rosettes often clumped; vegetative parts farinose only on pedicels and calyx, with prominent farina stripes on calyx. Leaves not aromatic, indistinctly petiolate; petiole broadly winged; blade without deep reticulate veins abaxially, lanceolate to spatulate, 4-15 × 1-2 cm, thick, margins distinctly and evenly denticulate, apex obtuse to somewhat acute, surfaces glabrous. Inflorescences 4-12-flowered; involucral bracts plane, unequal. Pedicels arcuate, moderately thick, 10-35 mm, length 1-5 times bracts, flexuous. Flowers heterostylous; calyx green, with white farinose ridges, cylindric to campanulate, 4-8 mm; corolla rose-magenta, tube 5-15 mm, length 1.2-2 times calyx, glandular, limb 15-25 mm diam., lobes 7-12 mm, apex emarginate. Capsules ellipsoid to ovoid, length 1 times calyx. Seeds without flanged edges, reticulate. 2n = 44.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.2
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 14 - 28
Germination temperacture (C°) 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Primula rusbyi world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:702550-1
WFO ID wfo-0001105388
COL ID 4MDDD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Primula rusbyi Primula ellisiae Primula serra Primula rusbyi var. ellisiae