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Streptanthus glandulosus Hook. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Icones Plantarum 1(1): pl. 40. 1836. (Icon. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 7/24/2009)
 

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17. Streptanthus glandulosus W. J. Hooker, Icon. Pl. I,  plate 40. 1836.

     Herbs, annual, sparsely to densely hirsute below, sometimes glabrous throughout, usually glaucous distally. Stems (0.8–)1.5–9(–12) dm, simple to branched throughout. Basal leaves not rosulate, petiolate, soon withered, lanceolate to oblanceolate, 1–15 cm, coarsely dentate to ± lobed, narrowed to ± winged petiole; middle cauline leaves linear-lanceolate to (ob)lanceolate, 1–12 cm x 1–11 mm, entire to coarsely dentate, sessile, auriculate to amplexicaul, not overlapping; upper leaves similar, reduced, often entire. Racemes ebracteate, lax, secund or not, without a terminal cluster of sterile flowers; fruiting pedicels ascending to divaricate or spreading, straight or recurved, glabrous or pubescent, 0.2–3.2 cm. Flowers: sepals forming zygomorphic calyx, white, yellow, rose, purple, or purple-black, lanceolate to broadly ovate, (3–)5–10(–13) mm, glabrous or sparsely hirsute; petals subequal or adaxial pair distinctly longer and more recurved than abaxial, 7–17 mm; blade 2–7 x 1–3 mm, crisped; claw 5–13 mm, wider than blade; filaments in 3 pairs or unequal length; adaxial pair exserted, united to at least lower 2/3, 5–13 mm; abaxial pair free, 4–9 mm; lateral pair 2.5–7 mm; anthers of adaxial stamens sterile, 0.3–1 mm; anthers of abaxial and lateral stamens fertile, 1–2.5 mm. Fruits 3–11 cm x 1.5–2.5 mm, flattened, not torulose, straight or curved upwards or arcuate, ascending to divaricate or spreading; valves with a distinct midvein, glabrous or sparsely to moderately hirsute; gynophore 0.2–1.5 mm; replum straight; style 0.1–2.5 mm; stigma subentire; ovules and seeds 22–70 per fruit. Seeds ovate to oblong, 1.5–2.1 x 1–1.5 mm; wing continuous, 0.1–0.5 mm wide. 2n = 28.

Flowering: Apr–Jul.

Habitat: rocky open slopes, talus, serpentine slopes and outcrops, forest and chaparral openings, steep slopes in woodland, ultramafic grasslands.

Elevation: 0–1400 m.

Distribution: United States (California, SW Oregon).

     Eight subspecies 8.

 

 

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                        Key to the subspecies of Streptanthus glandulosus

1. Fruiting pedicels 1–3.2 cm; sepals dark purple-black; rachis of raceme flexuous;

    lower stems and cauline leaves glabrous............................................................ 17e. subsp. niger

1. Fruiting pedicels 0.2–1.5 cm; sepals white, lilac, lavender, purple, or reddish purple;

    rachis of raceme straight; lower stems and cauline leaves sparsely to densely hirsute.

    2. Racemes not secund.

        3. Sepals white, greenish white, or pale yellow; Santa Clara County........... 17a. subsp. albidus

        3. Sepals reddish purple, dark maroon, or lilac-lavender; San Luis Obispo County north

            into Santa Clara, Lake, and Mendocino counties........................... 17b. subsp. glandulosus

    2. Racemes secund.

       4. Sepals lavender to rose or purple.

            5. Fruiting pedicels 2–5 mm; fruits curved upwards, divaricate to ascending; adaxial

               filaments 6–8 mm; Marin County.................................................. 17f. subsp. pulchellus

            5. Fruiting pedicels 5–15 mm; fruits arcuate, spreading to reflexed; adaxial

               filaments 7–10 m; Sonoma County............................................... 17c. subsp. hoffmanii

       4. Sepals greenish white, white, cream, or pale yellow.

           6. Petals 7–8 mm; adaxial stamens 5–6 mm; fruits divaricate-ascending, straight or

               curved inwards; Josephine County, Oregon............................ 17d. subsp. josephinensis

           6. Petals 10–17 mm; adaxial stamens 7–10 mm; fruits spreading to reflexed, arcuate;

               Marin, Napa, and Sonoma counties, California.

               7. Sepals greenish white with lavender or purplish base; petals with purple veins;

                    Marin and Napa County  ........................................................17g. subsp. secundus

               7. Sepals cream or pale yellow, without purplish or lavender base; petals without

                    purple veins; Sonoma County.............................................. 17h. subsp. sonomensis

 

 


 

 
 
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