Interesting Facts
Description
Family Compositae
The largest family of flowering plants , the Compositae (Asteraceae), comprising about 1,100 genera and more than 20,000 species and characterized by many small flowers arranged in a head looking like a single flower and subtended by an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.
Genus Helianthella
Perennials
, 20-150 cm. Stems erect
, usually branched. Leaves basal and cauline; opposite (proximal
) and alternate; usually petiolate
(at least proximal) ; blades
(usually 3- or 5-nerved from at or near bases
) elliptic
, lanceolate, lance-linear
, linear
, oblanceolate
, ovate
, ovate-lanceolate, or spatulate
, bases mostly cuneate, margins
entire, faces
glabrous
or hairy
. Heads radiate
, borne singly or (2-15+) in corymbiform
arrays. Involucres campanulate
to hemispheric
or broader, 10-50 mm diam. Phyllaries persistent
, 22-32+ in ± 3 series (mostly deltate-ovate or ovate to lanceolate, linear, or oblong
, subequal
or unequal, outer sometimes foliaceous
). Receptacles ± convex
, paleate (paleae falling with cypselae, conduplicate
, scarious
or chartaceous
). Ray florets 8-21, neuter
; corollas ± yellow. Disc florets 30-200+, bisexual
, fertile
; corollas yellow or purple to brown, tubes
shorter than or equaling throats
, lobes
5, deltate (abaxially hairy). Cypselae (brownish) ± compressed
, obovate
to obcordate
(margins usually ± winged
, usually ± ciliate
, faces glabrous or strigose
) ; pappi 0, or persistent, of 2 ± subulate
scales
plus 0-4+ shorter, lacerate
scales (sometimes all ± connate
). x = 15.
Species 9: w North America, n Mexico.[1]
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- Class:
Spermatopsida
()
- Brongniart, 1843
- Subclass:
Asteridae
()
- Takhtajan, 1967
- Superorder:
Campanulanae
()
- Takhtajan Ex Reveal, 1992
- Order:
Asterales
()
- Lindley, 1833
- Family:
Compositae
()
- Giseke, 1792, nom. cons., nom. alt.
- Genus:
Helianthella
()
- J. Torrey & A. Gray, 1842
- Little sunflower [Generic name Helianthus and Latin -ella, diminutive]
- Specific epithet:
gypsophila
- B.L.Turner
- Baby's-breath [Greek gypsos, gypsum, and philios, loving, alluding to habitat of some species]
- Botanical name: - Helianthella gypsophila B.L.Turner
- Specific epithet:
gypsophila
- B.L.Turner
- Baby's-breath [Greek gypsos, gypsum, and philios, loving, alluding to habitat of some species]
- Genus:
Helianthella
(
- Family:
Compositae
(
- Order:
Asterales
(
- Superorder:
Campanulanae
(
- Subclass:
Asteridae
(
- Class:
Spermatopsida
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
Name
Status: Accepted Name
.
Comment: Data Providers: CONABIO, IPNI. GCC LSID: urn
:lsid:compositae.org:names:B516AD68-CB6E-4BF1-95EB-5C3ABA37C443
Last scrutiny: 13-Aug-09
Similar Species
Members of the genus Helianthella
ZipcodeZoo has pages for 12 species, subspecies, varieties, forms, and cultivars in this genus:
H. californica (California Helianthella) · H. californica Gray var. shastensis W.A.Weber (Shasta Helianthella) · H. californica var. californica (California Helianthella) · H. californica var. nevadensis (Nevada Helianthella) · H. californica var. shastensis (Shasta Helianthella) · H. castanea (Diablo Rock-Rose) · H. microcephala (Purpledisk Helianthella) · H. parryi (Dwarf Rockrose) · H. quinquenervis (Fivenerve Helianthella) · H. uniflora (Oneflower Helianthella) · H. uniflora var. douglasii (Douglas' Helianthella) · H. uniflora var. uniflora (Oneflower Helianthella)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Phytologia memoirs. Plainfield, N.J.: H.N. Moldenke and A.L. Moldenke, 1980- url p. 46.
- Weber, W. A. 1948. The genus Helianthella in Oregon. Madroño 9: 186-189.
- Weber, W. A. 1952. The genus Helianthella (Compositae). Amer. Midl. Naturalist 48: 1-35.
Notes
Contributors
- GCC: Global Compositae Checklist. Release date: November 18, 2009
- Ruggiero M., Gordon D., Bailly N., Kirk P., Nicolson D. (2011). The Catalogue of Life Taxonomic Classification, Edition 2, Part A. In: Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D., eds). DVD; Species 2000: Reading, UK.
Identifiers
- Catalogue of Life Accepted Name Code: Ast-17081
- Zipcode Zoo Species Identifier: 4460233
Footnotes
- William A. Weber "Helianthella". in Flora of North America Vol. 21 Page 65, 66, 67, 114. Oxford University Press. Online at EFloras.org. [back]
