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
Montia howellii
HOWELL'S MONTIA

Higher Taxonomy
Family: MontiaceaeView DescriptionDichotomous Key

Common Name: MINER'S LETTUCE FAMILY
Habit: Annual to perennial herb; generally fleshy. Stem: 1--many, generally glabrous. Leaf: simple, alternate or opposite. Inflorescence: axillary or terminal; cyme, raceme, panicle, umbel, or flower 1. Flower: bisexual, radial; sepals generally 2(9), free; petals (1)2--19, free or +- fused; stamens 1--many, epipetalous or not, anthers pink, rose, or yellow; ovary superior, chamber 1, ovules 1--many, placenta basal or free-central; styles (0)1--8, generally fused at base, branched. Fruit: capsule, circumscissile or 2--3-valved. Seed: 1--many, shiny or +- pebbly or sculptured, black or gray, generally with oil-filled appendage as food for ants.
Genera In Family: +- 22 genera, +- 230 species: generally temperate America, Asia, Australia, Europe, Kerguelen Is, New Zealand, southern Africa, poorly represented in Europe; some cultivated (Lewisia, Calandrinia). Note: All CA genera previously included in Portulacaceae; details of flowers, seeds require 20× magnification.
Unabridged Note: May include Hectorellaceae.
eFlora Treatment Author: John M. Miller, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: MontiaView DescriptionDichotomous Key

Habit: Annual, perennial herb, glabrous, +- fleshy, +- aquatic or not, matted or not. Leaf: cauline > 2, alternate or opposite, free, entire. Inflorescence: raceme, 1-sided; lowest flower generally bracted; pedicel recurved, erect in fruit. Flower: petals (3)5, equal or 2 larger, white to pink; stamens (3)5, epipetalous; ovary chamber 1, placentas basal, style 1, stigmas 3. Fruit: valves 3, margins rolled in, forcibly expelling seeds. Seed: 1--3, generally black, smooth to tubercled, appendaged or not.
Species In Genus: 12 species: Worldwide. Etymology: (Giuseppe Monti, Italian botanist, 1682--1760) Note: Sometimes divided into 9 genera.
eFlora Treatment Author: John M. Miller & Kenton L. Chambers

Montia howellii S. Watson
NATIVE
Habit: Annual 1--9 cm, matted, rooting at lower nodes. Leaf: alternate, 5--25 mm, linear or +- oblanceolate. Inflorescence: few to many, in axils of membranous bracts opposite stem leaves, sessile; flowers 2--6, lowest 1 bracted. Flower: generally cleistogamous; sepals 0.8--1.5 mm, widely ovate, obtuse; petals 0--0.7 mm, +- unequal, white; stamens 3. Fruit: 0.9--1.2 mm. Seed: 0.7--0.9 mm, smooth; appendage << 0.2 mm.
Ecology: Vernally wet sites, often compacted soil; Elevation: < 400 m. Bioregional Distribution: NW; Distribution Outside California: to British Columbia. Flowering Time: Mar--May Note: Sometimes mistaken for Montia fontana or Montia dichotoma. Self-pollinated.
eFlora Treatment Author: John M. Miller & Kenton L. Chambers
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Montia fontana
Next taxon: Montia linearis

Name Search
botanical illustration including Montia howellii

Contact/Feedback

Citation for this treatment: John M. Miller & Kenton L. Chambers 2016. Montia howellii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=33997, accessed on February 14, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 14, 2016.


Montia howellii
click for enlargement
© 2004 Julie Kierstead Nelson
Montia howellii
click for enlargement
© 2004 Julie Kierstead Nelson

More photos of Montia howellii in CalPhotos


Geographic subdivisions for Montia howellii:
NW;
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.