Jepson eFlora: Taxon page
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
Petalonyx linearis

Higher Taxonomy
Family: LoasaceaeView DescriptionDichotomous Key

Common Name: LOASA FAMILY
Habit: Annual to subshrub; hairs needle-like, barbed, occasionally stinging. Leaf: alternate [opposite], generally +- pinnate-lobed; stipules 0. Inflorescence: cyme, raceme. Flower: bisexual, radial; sepals generally 5, generally persistent; petals generally 5, free or fused to each other or filament tube; stamens 5--many, filaments thread-like to flat, occasionally fused at base or in clusters; petal-like staminodes occasionally present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1. Fruit: capsule or achene. Seed: 1--many.
Genera In Family: 18+ genera, 250 species: especially America (Africa, Pacific).
eFlora Treatment Author: Larry Hufford & Barry Prigge, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: PetalonyxView DescriptionDichotomous Key

Common Name: SANDPAPER-PLANT
Habit: Subshrub; hairs barbed. Leaf: linear to +- round, entire to toothed; base tapered to cordate. Inflorescence: raceme, generally terminal; bracts 3 per flower, outer 1 > inner 2. Flower: sepals +- deciduous; petals free or claws adherent, fused below blades; stamens generally 5, free; ovary +- ovoid, placenta 1, stigma 1. Fruit: achene, +- ovoid, generally 5-veined or -ribbed, erect. Seed: 1, 1.5--2.5 mm, +- fusiform, generally smooth. Chromosomes: 2n=46.
Species In Genus: 5 species: southwestern United States, northwestern Mexico. Etymology: (Greek: petal claw)

Petalonyx linearis Greene
NATIVE
Habit: Plant 15--100 cm. Leaf: generally sessile, 10--25 mm, linear to narrowly (ob)lanceolate, obtuse to acute, entire to irregularly toothed. Inflorescence: 4--10 cm; outer bract 5--8 mm, ovate to +- round; inner bracts 3--4 mm, ovate, +- cordate, acute to notched, lobed; pedicels 1--2 mm. Flower: petals 2--5.5 mm, free, white; stamens 3--7 mm, +- exserted; style +- 3--6 mm.
Ecology: Sandy or rocky canyons, generally in creosote-bush scrub; Elevation: < 1000 m. Bioregional Distribution: se DMoj, DSon; Distribution Outside California: southwestern Arizona, northwestern Mexico. Flowering Time: Mar--May
eFlora Treatment Author: Larry Hufford & Barry Prigge
Jepson Online Interchange

Previous taxon: Petalonyx
Next taxon: Petalonyx nitidus

Name Search

Contact/Feedback

Citation for this treatment: Larry Hufford & Barry Prigge 2016. Petalonyx linearis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=37311, accessed on February 12, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 12, 2016.


Petalonyx linearis
click for enlargement
© 2015 Keir Morse
Petalonyx linearis
click for enlargement
© 2015 Keir Morse
Petalonyx linearis
click for enlargement
© 2015 Keir Morse
Petalonyx linearis
click for enlargement
© 2015 Keir Morse
Petalonyx linearis
click for enlargement
© 2015 Keir Morse
Petalonyx linearis
click for enlargement
© 2015 Keir Morse

More photos of Petalonyx linearis in CalPhotos


Geographic subdivisions for Petalonyx linearis:
se DMoj, DSon;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
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.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.