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Nuttallanthus texanus

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, Diplacus, Erythranthe, Limosella, Lindernia, Mimetanthe, Mimulus, Myoporum, Scrophularia, Verbascum). California Maurandya moved to Holmgrenanthe and Maurandella. Mohavea moved to Antirrhinum. 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 W. Patterson, Bruce G. Baldwin.
Genus: NuttallanthusView Description 

Habit: Annual to biennial. Stem: erect, simple or branched at base. Leaf: on flower stem generally alternate, sessile, linear, entire to dentate, pinnately veined; on non-flowering stems whorled, generally wider. Inflorescence: raceme, terminal; bracts reduced, alternate. Flower: calyx lobes 5, deep, +- equal; corolla 5-lobed, unequally 2-lipped, lower lip >> upper, lower side of tube spurred at base or spur 0, lower side of throat swollen, +- hairy, +- closing corolla proximal to lips; stamens 4, in 2 pairs, included; stigma small, unlobed. Fruit: dehiscent by slits into chambers near tip, +- spheric. Seed: many, prismatic, 4--7-angled, faces smooth or tubercled.
Etymology: (Thomas Nuttall, English naturalist, 1786--1859)
eFlora Treatment Author: Robert E. Preston & Margriet Wetherwax
Reference: Crawford & Elisens 2006 Amer J Bot 93:582--591
Unabridged Reference: Sutton 1988 Revision of the tribe Antirrhineae. Oxford Univ Press
Nuttallanthus texanus (Scheele) D.A. Sutton
Habit: Generally glabrous. Stem: 10--60 cm, slender, with decumbent non-flowering shoots. Leaf: 5--25 mm, narrowly linear, obtuse. Inflorescence: raceme, dense in flower, open in fruit, +- glandular-puberulent; pedicels 1.5--6 mm, > bracts; flowers opening or cleistogamous. Flower: calyx +- 3 mm, lobes lance-linear, tips acute; corolla 10--24 mm (including spur), violet to blue, lips spreading, lower lip 6--11 mm, >> upper, throat swelling +- obscure, white-ridged, spur 6--11 mm, straight or curved, slender. Fruit: +- 3 mm. Seed: 0.5 mm, faces +- tubercled. Chromosomes: n=12.
Ecology: Sand or gravel; Elevation: < 1800 m. Bioregional Distribution: NW (exc NCoRH), SNF, GV, CW, SW (exc SnBr, SnJt), DMtns (Granite Mtns, w San Bernardino Co.); Distribution Outside California: southwestern and south-central United States, Mexico, temperate South America. Flowering Time: Mar--May
Synonyms: Linaria canadensis (L.) Dum.Cours. var. texana (Scheele) Pennell; Linaria canadensis (L.) Chaz., in part, misappl.
Jepson eFlora Author: Robert E. Preston & Margriet Wetherwax
Reference: Crawford & Elisens 2006 Amer J Bot 93:582--591
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Nuttallanthus texanus

botanical illustration including Nuttallanthus texanus

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Citation for this treatment: Robert E. Preston & Margriet Wetherwax 2012, Nuttallanthus texanus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 21, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on April 21, 2024.

Nuttallanthus texanus
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©2017 Neal Kramer
Nuttallanthus texanus
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©2009 Neal Kramer
Nuttallanthus texanus
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©2010 Barry Breckling
Nuttallanthus texanus
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©2011 Vernon Smith
Nuttallanthus texanus
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©2022 Aaron Schusteff

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Geographic subdivisions for Nuttallanthus texanus:
NW (exc NCoRH), SNF, GV, CW, SW (exc SnBr, SnJt), DMtns (Granite Mtns, w San Bernardino Co.)
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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).


Data provided by the participants of the  Consortium of California Herbaria.
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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.

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).