Rudbeckia klamathensis P.B.Cox & Urbatsch

Klamath coneflower (en)

Species

Angiosperms > Asterales > Asteraceae > Rudbeckia

Characteristics

Perennials, 50–100 cm (rhizomatous, roots fibrous). Leaves greenish blue (± glaucous), blades ovate to elliptic, often lobed, herbaceous, bases attenuate to rounded, margins entire, coarsely dentate, or crenate, apices acute, faces glabrous or sparsely hairy (at least on abaxial veins); basal petiolate, 15–65 × 4–15 cm; cauline petiolate or sessile, 7–35 × 4–14 cm. Heads borne singly or (2–10) in ± corymbiform arrays. Phyllaries to 1.5 cm (margins ciliate, hairs appressed, apices acute to rounded). Receptacles ovoid to conic; paleae 5–6 mm, apices acute, abaxial tips hairy. Ray florets 7–15; laminae elliptic or oblong, 25–35 × 7–14 mm, abaxially hairy. Discs 15–35 × 12–22 mm. Disc florets 180–300+; corollas yellowish green, 3.5–4 mm; style branches ca. 1.5 mm, apices acute to obtuse. Cypselae 4.5–6 mm; pappi coroniform or of 5–8 scales, to 1.5 mm. 2n = 36.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 1.0
Root system fibrous-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-9
Soil humidity 3-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 5 - 21
Germination temperacture (C°) 21
Germination luminosity light
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Rudbeckia klamathensis world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:981297-1
WFO ID wfo-0000113871
COL ID 4TMB9
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rudbeckia californica var. intermedia Rudbeckia klamathensis