familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Ecliptinae
genusEncelia
speciesEncelia actoni

Encelia actoni

Elmer

Bot. Gaz. 39: 47. 1905.

Curtis Clark
Synonyms: Encelia frutescens var. actoni (Elmer) S. F. Blake Encelia virginensis subsp. actoni (Elmer) D. D. Keck
Treatment appears in FNA Volume 21. Treatment on page 121. Mentioned on page 119.
Revision as of 22:11, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Shrubs, 50–150 cm. Stems with slender branches from bases, hairy, developing fissured barks. Leaves cauline; petioles 6–12 mm; blades silvery green, ovate to deltate, 25–40 mm, apices acute, faces ± silvery-canescent. Heads borne singly. Peduncles canescent. Involucres 8–14 mm. Phyllaries ovate. Ray-florets 14–25; corolla laminae 10–25 mm. Disc corollas yellow, 5–6 mm. Cypselae 5–7 mm; pappi usually 0, rarely of 1–2 bristlelike awns. 2n = 36.


Phenology: Flowering Feb–Jul.
Habitat: Open areas, rocky slopes, roadsides
Elevation: 800–1500 m

Distribution

V21-295-distribution-map.gif

Calif., Nev., Mexico (Baja California)

Discussion

The epithet actoni (sometimes spelled actonii) is from a place name (Acton, Los Angeles County, California); actoni is correct.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Encelia actoni"
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2n chromosome quantity
36 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
dark +
Apex fusion
connate +  and distinct +
Apex growth form or texture
herbaceous +
Apex shape
acute +
Apex size
subequal +
Apex texture
scarious +
Apical appendage presence
absent +
Apical appendage shape
usually ovate +  and lanceolate +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
Array development
indeterminate +  and determinate +
Author
Curtis Clark +
Authority
Elmer +
Awn architecture
bristlelike +
Awn quantity
1 +  and 2 +
Awn shape
coroniform +
Band architecture
continuous +
Band quantity
1 +
Bark development
developing +
Bark relief
fissured +
Base shape
cuneate +
Blade architecture
compound +  and simple +
Blade coloration
silvery green +
Blade shape
ovate;deltate +
Blade some measurement
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Body architecture
winged;ribbed;winged;ribbed +
Body architecture or pubescence or relief
smooth +
Body relief
tuberculate +  and rugose +
Bractlet quantity
1;15 +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and barbellate +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +
Corolla coloration
brown-purple +  and yellow +
Corolla lamina some measurement
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Cypsela architecture
winged +
Cypsela architecture or shape
ribbed +
Cypsela growth form
dimorphic +
Cypsela pubescence
hairy +  and glabrous +
Cypsela shape
obovate +  and cuneate +
Cypsela some measurement
5mm;7mm +
Disc-floret architecture
staminate +
Disc-floret atypical quantity
100 (200) +
Disc-floret quantity
80 (100) +
Disc-floret reproduction
fertile +  and bisexual +
Disc corolla coloration
Yellow (?) +
Disc corolla some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Calif. +, Nev. +  and Mexico (Baja California) +
Elevation
800–1500 m +
Embryo course
straight +
Face pubescence
silvery-canescent +
Face relief
scabrellous +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
1;5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule arrangement
singly +
Habitat
Open areas, rocky slopes, roadsides +
Head architecture
discoid +  and radiate +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre diameter
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Involucre some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Leaf architecture
petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe quantity
5 (?) +
Lobe shape
triangular +
Margin architecture or shape
entire +
Margin shape
toothed +
Number of lower taxa
0 +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Pappus duration
persistent +
Pappus fragility
fragile +
Pappus life cycle
falling +
Pappus presence
absent +
Peduncle pubescence
canescent +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Petiole some measurement
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Phenology
Flowering Feb–Jul. +
Phyllary atypical quantity
30 (50) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
18 +  and 30 +
Phyllary shape
Ovate (?) +
Phyllary size
unequal +  and subequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Bot. Gaz. +
Publication year
1905 +
Ray-floret architecture
neuter +
Ray-floret atypical quantity
25 (40) +
Ray-floret presence
absent +
Ray-floret quantity
14 (25) +
Ray-floret reproduction
sterile +  and fertile +
Receptacle architecture
paleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
convex;flat +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
2;3 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 295.xml +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +
Stem pubescence
hairy +
Stigmatic papilla architecture
continuous +
Stigmatic papilla quantity
0 +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Encelia frutescens var. actoni +  and Encelia virginensis subsp. actoni +
Taxon family
Asteraceae +
Taxon name
Encelia actoni +
Taxon parent
Encelia +
Taxon rank
species +
Throat size
expanded +
Throat variability
equaling +
Tube height or length or size
shorter +
Tube shape
cylindric +
Tube size or length
shorter to longer than campanulate +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism duration
perennial +
Whole organism atypical some measurement
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Whole organism average some measurement
2500cm (10cm) +
Whole organism growth form
shrub +
Whole organism some measurement
50cm (150cm) +
X chromosome quantity
18 +