Rhinotropis intermontana

Rhinotropis intermontana INTERMOUNTAIN MILKWORT

Higher Taxonomy

Family: Polygalaceae

Common Name: MILKWORT FAMILY
Habit: [Annual] perennial herb, subshrub, shrub [tree, vine]; hairs unbranched. Leaf: simple, generally alternate (opposite or whorled); veins pinnate; margin generally +- entire; stipules generally 0. Inflorescence: raceme, spike, or panicle. Flower: bisexual, generally bilateral and +- pea-flower-like [or +- radial]; sepals 5, fused or not, lateral or inner pair generally larger and petal-like (called wings); petals 5[3], fused to stamen tube, [+- similar or] different with 1 lower keel petal, 2 strap-like upper petals, and 2[0] lateral petals; stamens 3--10, +- fused, tube open at top; ovary chambers 1--8 with 1 ovule each, style 1 or 0. Fruit: capsule [drupe or nut; occasionally winged]. Seed: often with aril.
Genera In Family: 29 genera, 1000 species: especially tropics, subtropics, few cultivated.
eFlora Treatment Author: Robert E. Preston & Thomas L. Wendt
Scientific Editor: Bruce G. Baldwin.

Genus: Rhinotropis

View Description

Dichotomous Key

Common Name: MILKWORT
Habit: Root odor generally wintergreen. Inflorescence: raceme, occasionally grouped and panicle-like; cleistogamous flowers occasionally solitary. Flower: bilateral; lateral 2 sepals enlarged; petals 3 or 5, keel petal generally with cylindric beak; stamens 6--8, anthers dehiscent at tip, appearing 1-chambered; with nectary disk or gland; ovary chambers 2, stigma 2-lobed. Fruit: capsule. Seed: fusiform or ovoid, black, generally hairy, generally with prominent white aril on 1 end.
Etymology: (Greek: snout keel, for beaked keel petal) Note: Polygala as treated broadly in TJM2 is not monophyletic; all CA milkworts now in Rhinotropis (Abbott 2011).
eFlora Treatment Author: Robert E. Preston & Thomas L. Wendt
Reference: Wendt 1979 J Arnold Arbor 60:504--514; Abbott 2011 JBRIT 5:125--137

Rhinotropis intermontana (T. Wendt) J.R. Abbott

NATIVE
Habit: Subshrub, shrub, stiff-branched, +- open, < 10 dm, occasionally mat-like. Stem: twig hairs dense, white, appressed to irregularly ascending. Leaf: 3--25 mm, linear to obovate, hairs incurved or appressed. Inflorescence: thorn-tipped; flowers 1--7; pedicel 2.5--9 mm, glabrous. Flower: 2.5--5.2 mm; outer sepals glabrous or ciliate, occasionally sparsely hairy near tip, wings cream or +- green; keel petal beak 0 or minute. Fruit: 3.5--5.8 mm including stalk. Seed: 2.8--4.2 mm, including hairs; sparsely pubescent to glabrous; aril glabrous. Chromosomes: 2n=18.
Ecology: Pinyon/juniper woodland; Elevation: 2600--3080 m. Bioregional Distribution: SNE (Mono Co.); Distribution Outside California: to Utah, northern Arizona. Flowering Time: May--Aug
Synonyms: Polygala intermontana T. Wendt
Unabridged Synonyms: Polygala acanthoclada A. Gray var. intricata Eastw.
Jepson eFlora Author: Robert E. Preston & Thomas L. Wendt
Reference: Wendt 1979 J Arnold Arbor 60:504--514; Abbott 2011 JBRIT 5:125--137
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Rhinotropis heterorhyncha
Next taxon: Rhinotropis subspinosa

Botanical illustration including Rhinotropis intermontana

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Citation for this treatment: Robert E. Preston & Thomas L. Wendt 2022, Rhinotropis intermontana, in Jepson Flora Project (eds.) Jepson eFlora, Revision 11, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=107538, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.

No expert verified images found for Rhinotropis intermontana.

Geographic subdivisions for Rhinotropis intermontana: SNE (Mono Co.)	MAP CONTROLS 1. You can change the display of the base map layer control box in the upper right-hand corner. 2. County and Jepson Region polygons can be turned off and on using the check boxes.

(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).	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 (fruiting time in some monocot genera).