Jepson eFlora: Taxon page
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Holmgrenanthe petrophila

Higher Taxonomy
Family: PlantaginaceaeView DescriptionDichotomous Key

Habit: Annual to shrub, some aquatic. Leaf: basal or cauline, alternate or opposite (whorled), simple, entire to dentate or lobed, venation generally pinnate; stipules 0. Inflorescence: raceme, spike, or flowers axillary in 1--few-flowered clusters; flowers few to many, each subtended by 1 bract. Flower: unisexual or bisexual, radial or bilateral; sepals 4--5, generally fused at base; corolla 4--5-lobed, scarious or not, persistent or not, generally 2-lipped, upper lip generally 2-lobed, lower generally 3-lobed, spur present or not, tube sac-like at base or not; stamens 2 or 4, alternate corolla lobes, epipetalous, staminode 0 or 1--2, anthers opening by 2 slits; ovary superior, [1]2--4-chambered, style 1, stigma lobes 0 or 2. Fruit: generally a capsule, septicidal, loculicidal, circumscissile, or dehiscing by terminal slits or pores.
Genera In Family: 110 genera, +- 2000 species: worldwide, especially temperate. Note: Veronicaceae sensu Olmstead et al. Recently treated to include Callitrichaceae, Hippuridaceae, and most non-parasitic California genera of Scrophulariaceae (except Buddleja, Limosella, Mimulus, Myoporum, Scrophularia, Verbascum). California Maurandya moved to Holmgrenanthe and Maurandella. Limnophila ×ludoviciana Thieret an occasional agricultural weed in rice fields. Hebe ×franciscana (Eastw.) Souster, Hebe speciosa (R. Cunn.) Andersen only cultivated.
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: HolmgrenantheView Description 

Species In Genus: 1 sp.: southeastern California. Etymology: (Arthur H. Holmgren (1912--1992), Noel H. Holmgren (b. 1937), Patricia K. Holmgren (b. 1940))

Holmgrenanthe petrophila (Coville & C.V. Morton) Elisens
Habit: Perennial herb, glandular-puberulent to -hairy. Stem: erect to pendent, densely branching, becoming woody at base. Leaf: generally alternate; petiole 12--27 mm, not twining; blade 12--35 mm, 14--27 mm wide, +- round to reniform, irregularly bristly-dentate; veins palmate. Inflorescence: flowers 1 in leaf axils; pedicel 1--4 mm. Flower: sepals 5, +- equal, 9--13 mm, irregularly bristly-dentate; corolla white to pale yellow, tube-throat 20--24 mm, sac-like extension at base absent, floor with 2 longitudinal yellow folds, lower lip base generally not swollen, generally not closing mouth; stamens included, lower filaments 7--9 mm, upper 12--14 mm; style 9--10 mm. Fruit: 8--10 mm, +- spheric; chamber 1, septum incomplete, dehiscent by 2--3 pores. Seed: many, 2--3 mm, pitted.
Ecology: Limestone crevices of canyons; Elevation: 700--1700 m. Bioregional Distribution: n DMoj (Titus, Fall canyons, Death Valley region, Inyo Co.). Flowering Time: Apr--Jun
Synonyms: Maurandya petrophila Coville & C.V. Morton
eFlora Treatment Author: Margriet Wetherwax
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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botanical illustration including Holmgrenanthe petrophila


Citation for this treatment: Margriet Wetherwax 2016. Holmgrenanthe petrophila, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 05, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 05, 2016.

Holmgrenanthe petrophila
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© 2004 John Game

More photos of Holmgrenanthe petrophila in CalPhotos

Geographic subdivisions for Holmgrenanthe petrophila:
n DMoj (Titus, Fall canyons, Death Valley region, Inyo Co.).
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.
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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

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