Heterotheca sessiliflora subsp. echioides (Benth.) Semple

Sessileflower false goldenaster (en)

Subspecies

Angiosperms > Asterales > Asteraceae > Heterotheca > Heterotheca sessiliflora

Characteristics

Stems 1–20, (10–)26–65(–80) cm, sparsely to densely hispido-strigose (long-hispid hairs many), sparsely to moderately stipitate-glandular, sometimes sparsely hispido-strigose and densely stipitate-glandular distally. Cauline leaves: proximal subsesile to sessile, blades oblanceolate, (8–)15–35(–47) × (2.4–)3.6–62(–90) mm, margins entire, proximally with spreading, large, stiff strigose cilia, apices acute, faces sparsely to densely hispido-strigose, sparsely to densely stipitate-glandular; distal sessile, blades lanceolate, 6.5–40 × 1.5–7.7 mm, reduced distally, bases rounded, margins flat to ± undulate, abundantly spreading-ciliate, faces sparsely to densely hispido-strigose, sparsely to densely stipitate-glandular. Peduncle bracts 0–5, grading from leaves, reduced distally, those subtending head not larger and more leafy, faces sparsely to moderately hispido-strigose, moderately to densely stipitate-glandular. Involucres 6.3–10(–12) mm. Ray florets (6–)8–14(–17); laminae (4.5–)5.8–9.8(–13) mm. Disc florets: corolla lobes sparsely pilose (hairs 0.2–1 mm). Cypsela faces moderately to densely strigose. 2n = 18, 36.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25 - 0.65
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

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

Distribution

Heterotheca sessiliflora subsp. echioides world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:970429-1
WFO ID wfo-0000099694
COL ID 7S9YC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Chrysopsis vestita Chrysopsis californica Heterotheca echioides Chrysopsis camphorata Chrysopsis echioides Heterotheca camphorata Heterotheca sessiliflora var. camphorata Heterotheca echioides var. echioides Chrysopsis villosa var. camphorata Chrysopsis sessiliflora var. echioides Heterotheca sessiliflora var. bolanderioides Heterotheca sessiliflora subsp. echioides Chrysopsis villosa var. echioides Heterotheca sessiliflora var. echioides