Jepson eFlora: Taxon page
Vascular Plants of California
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon


Taraxia ovata


Higher Taxonomy
Family: OnagraceaeView DescriptionDichotomous Key
Common Name: EVENING-PRIMROSE FAMILY
Habit: Annual to perennial herb (to tree). Leaf: cauline or basal, alternate, opposite, or whorled, generally simple and toothed (to pinnately compound); stipules 0 or generally deciduous. Inflorescence: spike, raceme, panicle, or flowers 1 in axils; bracted. Flower: generally bisexual, generally radial, often opening at either dawn or dusk; hypanthium generally prolonged beyond ovary (measured from ovary tip to sepal base); sepals 4(2--7); petals 4(2--7, rarely 0), often fading darker; stamens 2 × or = sepals in number, anthers 2-chambered, opening lengthwise, pollen interconnected by threads; ovary inferior, chambers generally as many as sepals (sometimes becoming 1), placentas axile or parietal, ovules 1--many per chamber, style 1, stigma 4-lobed (or lobes as many as sepals), club-shaped, spheric, or hemispheric. Fruit: capsule, loculicidal (sometimes berry or indehiscent and nut-like). Seed: sometimes winged or hair-tufted.
Genera In Family: 22 genera, +- 657 species: worldwide, especially western North America; many cultivated (Clarkia, Epilobium, Fuchsia, Oenothera). Note: Gaura moved to Oenothera. Fuchsia magellanica Lam. naturalized in northern California.
eFlora Treatment Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: TaraxiaView DescriptionDichotomous Key


Habit: Perennial herb, from thick taproot that may branch in age producing multiple rosettes, stem 0. Leaf: basal, simple, ovate or lanceolate to narrowly elliptic, nearly entire to deeply pinnately lobed. Inflorescence: flowers 1 in axils, erect in bud. Flower: radial, opening at dawn; sepals 4, reflexed separately; petals 4, yellow (or white), unspotted, strongly ultraviolet reflective (non-reflective at base), fading +- purple or +- red; stamens 8, longer ones opposite sepals, anthers attached at base, pollen grains 3-angled except in polyploid taxa (visible with hand lens); ovary chambers 4, stigma hemispheric, generally > anthers and cross-pollinated (or +- = anthers and self-pollinated), sterile projection of ovary persistent with fertile part in fruit, without abscission lines at juncture between hypanthium and fertile part of ovary. Fruit: cylindric-ovoid, +- angled to nearly cylindric, walls generally thin, distended by seeds, tip gradually attenuate into a slender sterile portion (0.4)1.5--18 cm, occasionally persistent for > 1 year, sessile. Seed: in 2 rows per chamber, elongate-ovoid, cylindric to oblong-ellipsoid, pitted or coarsely papillate, giving a shaggy appearance.
Species In Genus: 4 species: California to Washington & southwestern Canada, Nevada to Colorado (especially CA-FP). Etymology: (Leaves similar to Leontodon taraxacoides) Note: Incl in Camissonia in TJM (1993).
Reference: Wagner et al. 2007 Syst Bot Monogr 83:1--240
Unabridged Reference: Raven 1969 Contr US Natl Herb 37:161--396
Taraxia ovata (Nutt. ex Torr. & A. Gray) Small
NATIVE
Habit: Plant +- fleshy. Leaf: blade 30--150 mm, narrowly elliptic to ovate, +- entire to wavy, veins and margin with short, erect hairs; petiole 8--150 mm. Flower: hypanthium 2--3 mm; sepals 11--19 mm; petals 8--23 mm; sterile tip of ovary 25--180 mm. Fruit: 11--30 mm, linear-oblanceolate, +- straight or slightly curved, swollen by seeds, papery, tardily dehiscent, +- sessile. Seed: 1.8--2.2 mm, papillate, brown. Chromosomes: 2n=14.
Ecology: Grassy fields, generally clay soil; Elevation: < 500 m. Bioregional Distribution: NW, CW; Distribution Outside California: southwestern Oregon. Flowering Time: Mar--Jun
Synonyms: Oenothera ovata Nutt. ex Torr. & A. Gray; Camissonia ovata (Nutt. ex Torr. & A. Gray) P.H. Raven
Jepson eFlora Author: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner
Reference: Wagner et al. 2007 Syst Bot Monogr 83:1--240
Jepson Online Interchange

Previous taxon: Taraxia
Next taxon: Taraxia subacaulis

Name Search

Botanical illustration including Taraxia ovata

botanical illustration including Taraxia ovata

Contact/Feedback

Citation for this treatment: Warren L. Wagner & Peter C. Hoch, family description, key to genera, treatment of genera by Warren L. Wagner 2012, Taraxia ovata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=89233, accessed on October 15, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 15, 2019.

Taraxia ovata
click for enlargement
© 2007 Neal Kramer
Taraxia ovata
click for enlargement
© 2007 Neal Kramer
Taraxia ovata
click for enlargement
© 2007 California Academy of Sciences
Taraxia ovata
click for enlargement
© 2019 Neal Kramer
Taraxia ovata
click for enlargement
© 2017 Barry Rice
Taraxia ovata
click for enlargement
© 2014 California Academy of Sciences

More photos of Taraxia ovata in CalPhotos



Geographic subdivisions for Taraxia ovata:
NW, CW
MAP CONTROLS
1. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner.
2. California county polygons can be turned off and on in the layer control box.
3. Filling of Jepson subdivision polygons can be turned off and on in the layer control box.
4. Moving the cursor over any numbered cluster will show the range boundary of the included specimens (with a blue polygon).
5. Marker clustering can be turned off by clicking this link:      Marker Clustering OFF
WARNING: Turning this off might cause maps with large numbers of specimens to load slowly.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

View elevation by latitude chart


Data provided by the participants of the  Consortium of California Herbaria.
MAP LEGEND
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS


CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.