dcsimg
 
  en  
names in breadcrumbs
Image of hyssopleaf thoroughwort
Creatures » … » Plants » … » Dicotyledons » … » Composite Family » …

Hyssopleaf Thoroughwort

Eupatorium hyssopifolium L.

English
show all English Spanish; Castilian Asturian Vietnamese
filter by provider
show all eFloras wikipedia EN

Comments

provided by eFloras
Eupatorium hyssopifolium includes both diploid and polyploid cytotypes and presents a complex situation taxonomically. The diploids are placed here in var. hyssopifolium, which also includes polyploids and is characterized by relatively narrow leaves. Variety laciniatum has broader leaves and molecular data suggest that it arose through hybridization between var. hyssopifolium and E. serotinum; the name E. torreyanum has been applied to plants of similar morphology, but these are hybrid derivatives of E. serotinum and E. mohrii. It has also been suggested that var. hyssopifolium has hybridized with E. album var. album to form E. saltuense, and with diploids of E. linearifolium to form polyploid populations included here under E. linearifolium. Eupatorium hyssopifolium is characterized by a tendency for the leaves to be whorled, in 3s and 4s, and for axillary buds to produce leaves without expansion of shoots; the combination of whorled leaves and suppressed axillary shoots gives the nodes a somewhat tufted or verticillate appearance.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 464, 468, 470, 473 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Perennials, 50–100+ cm. Stems (from short caudices or rhizomes) single, sparsely branched distally, pubescent throughout. Leaves usually opposite or whorled (distal sometimes alternate, spreading or horizontal); simple, sessile; blades 3-nerved from bases (laterals sometimes weak), lance-linear, lance-oblong, or linear, 20–60 × 2–15 mm (lengths mostly 6–40 times widths), bases cuneate, margins entire, laciniate-serrate, or serrate, apices acute, faces scabrous (at least abaxial). Heads in corymbiform arrays. Phyllaries 8–10 in 2–3 series, elliptic to oblong, 1.5–5 × 1–1.5 mm, apices obtuse to acute (not mucronate), abaxial faces pubescent throughout (more densely distally). Florets 5; corollas 3–3.5 mm. Cypselae 2–3 mm; pappi of 20–30 bristles 3.5–4 mm.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 464, 468, 470, 473 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Eupatorium hyssopifolium

provided by wikipedia EN

Eupatorium hyssopifolium, also known as hyssopleaf thoroughwort, is a fall-blooming herbaceous plant native to North America.[3] Like other members of the genus Eupatorium it has inflorescences containing a large number of very small flower heads, each with 5 white disc florets but no ray florets.[4] At 0.5 to one meter (20-40 inches) tall,[3] it is towards the shorter end of the range of heights found in Eupatorium species.[4]

Plants which are classified as E. hyssopifolium can be either diploid or polyploid, and some of them seem to have been the result of past hybridizations with Eupatorium serotinum. Hybrids with E. album and E. linearifolium also seem to exist. The hybrid E. torreyanum is similar to E. hyssopifolium but is a hybrid of E. serotinum and Eupatorium mohrii.[3]

Eupatorium hyssopifolium is found in much of the eastern and south-central United States, from Massachusetts west to Wisconsin, and as far south as Texas and Florida.[3][5] It grows in moist soils.[6]

Varieties[3]
  • Eupatorium hyssopifolium var. hyssopifolium - leaves 2–5 mm wide
  • Eupatorium hyssopifolium var. laciniatum A.Gray - leaves 5–15 mm wide

Uses

Eupatorium hyssopifolium can be used medicinally (applied externally for insect and reptile bites).[6] It can also be planted near crops to attract beneficial insects.[7]

References

  1. ^ "Eupatorium hyssopifolium". NatureServe Explorer. NatureServe. Retrieved 2010-09-12.
  2. ^ "Eupatorium hyssopifolium L.". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
  3. ^ a b c d e Siripun, Kunsiri Chaw; Schilling, Edward E. (2006). "Eupatorium hyssopifolium". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  4. ^ a b Siripun, Kunsiri Chaw; Schilling, Edward E. (2006). "Eupatorium". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. ^ USDA, NRCS (n.d.). "Eupatorium hyssopifolium". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.
  6. ^ a b "Eupatorium hyssopifolium". Plants for a Future.
  7. ^ Frank, SD; Shrewsbury, PM; Esiekpe, O (April 2008). "Spatial and temporal variation in natural enemy assemblages on Maryland native plant species". Environmental Entomology. 37 (2): 478–86. doi:10.1603/0046-225X(2008)37[478:SATVIN]2.0.CO;2. ISSN 0046-225X. PMID 18419920.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Eupatorium hyssopifolium: Brief Summary

provided by wikipedia EN

Eupatorium hyssopifolium, also known as hyssopleaf thoroughwort, is a fall-blooming herbaceous plant native to North America. Like other members of the genus Eupatorium it has inflorescences containing a large number of very small flower heads, each with 5 white disc florets but no ray florets. At 0.5 to one meter (20-40 inches) tall, it is towards the shorter end of the range of heights found in Eupatorium species.

Plants which are classified as E. hyssopifolium can be either diploid or polyploid, and some of them seem to have been the result of past hybridizations with Eupatorium serotinum. Hybrids with E. album and E. linearifolium also seem to exist. The hybrid E. torreyanum is similar to E. hyssopifolium but is a hybrid of E. serotinum and Eupatorium mohrii.

Eupatorium hyssopifolium is found in much of the eastern and south-central United States, from Massachusetts west to Wisconsin, and as far south as Texas and Florida. It grows in moist soils.

Varieties Eupatorium hyssopifolium var. hyssopifolium - leaves 2–5 mm wide Eupatorium hyssopifolium var. laciniatum A.Gray - leaves 5–15 mm wide
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN
EOL is hosted by: