Flora of North America species comparison

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Jensia yosemitana

Jensia rammii

Yosemite tarplant, Yosemite tarweed

Ramm's madia
Habit Plants 5–15(–25) cm. Plants 6–60 cm.
Leaves

blades 10–50 × 1–2 mm.

blades 15–100 × 1–3 mm.
Involucres

urceolate or globose, (3–)4–5 mm.
Ray florets

2–8;

laminae 0.5–3 mm.

5–12;

laminae 4–10 mm.
Disc florets

1–7.

16–65.
Invo

-lucres broadly obconic, 2.5–4 mm.

2n

= 16.

= 16.

Jensia yosemitana

Jensia rammii
Phenology Flowering May–Aug. Flowering Apr–Jul.
Habitat Sandy places, meadows Grassy slopes, openings in woodlands and forests
Elevation 1200–2300 m (3900–7500 ft) 400–1100(–1600) m (1300–3600(–5200) ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Jensia yosemitana is known from widely scattered sites on the western slopes of the Sierra Nevada, at higher elevations than most populations of J. rammii.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Jensia rammii occurs in the western foothills and ponderosa-pine belt of the northern Sierra Nevada, often in clayey soils.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 302. FNA vol. 21, p. 302.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Madiinae > Jensia Asteraceae > tribe Heliantheae > subtribe Madiinae > Jensia
Sibling taxa
J. rammii
J. yosemitana
Synonyms Madia yosemitana Madia rammii
Name authority (Parry ex A. Gray) B. G. Baldwin: Novon 9: 465. (1999) (Greene) B. G. Baldwin: Novon 9: 465. (1999)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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