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Vascular Plants of California
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Simpsonanthus jonesii
SIMPSON'S POPCORNFLOWER, MOJAVE POPCORNFLOWER


Higher Taxonomy
Family: BoraginaceaeView DescriptionDichotomous Key
Common Name: BORAGE FAMILY
Habit: Annual, perennial herb, or shrub, often bristly or sharp-hairy. Stem: prostrate-decumbent to erect. Leaf: basal and/or cauline, simple, generally alternate, sometimes opposite, especially at base. Inflorescence: cymes, arranged singly or in groups of 2--5, generally coiled in flower, generally elongating in fruit. Flower: bisexual, generally radial; sepals 5, free or fused at least at base; corolla 5-lobed, salverform, funnel-shaped, rotate, or bell-shaped, appendages (often called "fornices") 0 or 5 at top of tube, when present often differentially pigmented, alternate stamens; stamens epipetalous; ovary superior, 4-lobed, style 1, entire or minutely 2-lobed (2-branched). Fruit: nutlets 1--4, when > 1, all similar (often called "homomorphic") or 1 or 2 dissimilar in size and/or shape from the others (often called "heteromorphic"), free (fused), smooth to roughened, prickly or bristly or not.
Genera In Family: +- 90 genera, +- 1600--1700 species: mostly temperate, especially western North America, Mediterranean; some cultivated (Borago, Echium, Myosotis, Symphytum). Toxicity: Many genera may be TOXIC from pyrrolizidine alkaloids or accumulated nitrates. Note: Sometimes still treated in broader sense of TJM2 (e.g., APG IV 2016 Bot J Linn Soc 181:1--20), but recent evidence (Luebert et al. 2016) supports segregation, for our flora, of the families Ehretiaceae, Heliotropiaceae, Hydrophyllaceae, Lennoaceae, and Namaceae.
eFlora Treatment Author: Michael G. Simpson, C. Matt Guilliams, Kristen Hasenstab-Lehman & Ronald B. Kelley
Scientific Editor: Bruce G. Baldwin, C. Matt Guilliams, Kristen Hasenstab-Lehman, David J. Keil, Ronald B. Kelley, Robert W. Patterson, Thomas J. Rosatti & Michael G. Simpson
Genus: SimpsonanthusView Description 



Species In Genus: 1 sp. Etymology: (Greek: Simpson's flower, for Michael G. Simpson, CA botanist, 1953--) Note: More closely related to Amsinckia and Amsinckiopsis than to Plagiobothrys (where previously included) based on molecular phylogenetic studies (Guilliams et al. 2020).
eFlora Treatment Author: C. Matt Guilliams & Kristen Hasenstab-Lehman
Reference: Guilliams et al. 2020 Novon 28:51--59
Simpsonanthus jonesii (A. Gray) Guilliams, Hasenstab & B.G. Baldwin
NATIVE
Habit: Annual, few- to several-branched throughout, taprooted. Stem: ascending to erect, to 5 dm, sharp-spreading-bristly. Leaf: cauline, alternate, sessile, oblong to elliptic, sometimes lanceolate on distal stem, 2--10 cm, generally rough-bristly with bulbous-based hairs, sometimes soft-bristly and/or short-fine-hairy. Inflorescence: raceme- or spike-like cymes, coiled in bud, generally elongate in fruit; bracts proximal; pedicel 0--1 mm. Flower: calyx lobes free to base, narrowly lanceolate to +- linear, soft-bristly, margins often ciliate, 4--9 mm in fruit; corolla +- funnel-shaped, white, limb 1--3 mm diam, appendages minute, light yellow, fading to white. Fruit: nutlets 3--4, 2--3 mm, triangular-ovate, abaxially cobblestone-like, coarse tubercles 0, abaxial and lateral ridges +- ill-defined or 0, transverse ridges and grooves 0, adaxially keeled; attachment scar at middle of adaxial keel crest, narrowly lanceolate to narrowly triangular, irregular, length +- 1/2 of nutlet.
Ecology: Sandy, gravelly, rocky washes and slopes, creosote-bush scrub, pinyon/juniper woodland; Elevation: 90--1900 m. Bioregional Distribution: s SNH, SNE, D; Distribution Outside California: to southern Utah, western Arizona, Mexico. Flowering Time: (Jan--)Mar--May(--Jun) Note: Resembles Amsinckia tessellata var. tessellata (in which corolla is yellow).
Synonyms: Plagiobothrys jonesii A. Gray
Jepson eFlora Author: C. Matt Guilliams & Kristen Hasenstab-Lehman
Reference: Guilliams et al. 2020 Novon 28:51--59
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Citation for this treatment: C. Matt Guilliams & Kristen Hasenstab-Lehman 2021, Simpsonanthus jonesii, in Jepson Flora Project (eds.) Jepson eFlora, Revision 9, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=82941, accessed on May 19, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on May 19, 2022.

No expert verified images found for Simpsonanthus jonesii.



Geographic subdivisions for Simpsonanthus jonesii:
s SNH, SNE, D
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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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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).