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
Mortonia utahensis
UTAH MORTONIA

Higher Taxonomy
Family: CelastraceaeView DescriptionDichotomous Key

Common Name: STAFF-TREE FAMILY
Habit: Shrub (climbing or not), tree, thorny or not, generally glabrous. Leaf: simple, opposite or alternate, deciduous to persistent, subsessile or petioled; veins pinnate. Inflorescence: cluster, cyme, raceme, panicle, or 1-flowered, axillary or terminal, bracted. Flower: generally bisexual, radial, small; hypanthium +- cup-shaped; sepals 4--5; petals (0)4--5, free; stamens 4--5, alternate petals, attached below or to rim of disk; ovary superior or +- embedded in disk, 2--5-chambered, placentas axile or basal, style generally 1, short, stigma +- head-like, 2--5-lobed. Fruit: capsule, winged achene, berry, drupe, or nutlet, often 1-chambered. Seed: generally 1 per chamber, arilled.
Genera In Family: 50 genera, 800 species: worldwide, especially southeastern Asia; some ornamental (Celastrus, Euonymus, Maytenus, Paxistima).
eFlora Treatment Author: Michael A. Vincent & Barry A. Prigge
Scientific Editor: Thomas J. Rosatti.
Genus: MortoniaView Description 

Habit: Shrub, erect, scabrous. Leaf: alternate, persistent, ascending, leathery, entire; margin generally thicker. Inflorescence: panicle, terminal, many-flowered. Flower: parts in 5s; hypanthium obconic; petals white; disk fused to hypanthium except at top, fleshy, +- white, in age red-purple; ovary superior, narrowly ovoid, stigma lobes 5, slender, spreading. Fruit: nutlet 1, oblong-cylindric, light brown. Seed: 1, straw-colored, difficult to separate from fruit; aril 0.
Species In Genus: 5 species: southwestern United States, Mexico. Etymology: (S.G. Morton, American botanist, physician, 1799--1851)

Mortonia utahensis (Trel.) A. Nelson
NATIVE
Habit: Plant 3--12 dm, coarsely scabrous. Stem: twigs cream-white, in age gray. Leaf: petiole +- 0--1 mm; blade 6--16 mm, ovate to round, abaxially concave transversely, convex longitudinally, base rounded to tapered, tip rounded to acute, mucronate or not. Inflorescence: 8--65 mm, 6--23 mm wide. Flower: hypanthium 1.5--2 mm; sepals 1--2.3 mm, keeled, tips often acute, keeled; petals 2.2--3 mm, ovate. Fruit: 5--7 mm, glabrous.
Ecology: Limestone slopes, canyon bottoms; Elevation: 350--2100 m. Bioregional Distribution: n DMoj; Distribution Outside California: to southwestern Utah. Flowering Time: Mar--May
eFlora Treatment Author: Michael A. Vincent & Barry A. Prigge
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Mortonia
Next taxon: Paxistima

Name Search
botanical illustration including Mortonia utahensis

Contact/Feedback

Citation for this treatment: Michael A. Vincent & Barry A. Prigge 2016. Mortonia utahensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=34025, accessed on February 09, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 09, 2016.


Mortonia utahensis
click for enlargement
© 2010 James M. Andre
Mortonia utahensis
click for enlargement
© 2004 James M. Andre
Mortonia utahensis
click for enlargement
© 2010 James M. Andre
Mortonia utahensis
click for enlargement
© 2008 Steve Matson
Mortonia utahensis
click for enlargement
© 2006 Steve Matson
Mortonia utahensis
click for enlargement
© 2010 James M. Andre

More photos of Mortonia utahensis in CalPhotos


Geographic subdivisions for Mortonia utahensis:
n DMoj;
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.