Details for: Ames 27961, Alnus maritima (Marshall) Muhl. ex Nutt. subsp. oklahomensis J. A. Schrad. & W. R. Graves, 'September Sun'


Summary Data
Taxonomy:
Alnus maritima (Marshall) Muhl. ex Nutt. subsp. oklahomensis J. A. Schrad. & W. R. Graves
Cultivar:
'September Sun'
Origin:
Collected – Oklahoma, United States
Received by NPGS:
20 Oct 2005
Improvement Status:
Cultivar
Form Received:
Plant
Life Cycle:
Perennial
Life Habit:
Tree
Availability
This accession is not available. Contact site for status.
 
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Core Passport Data
Taxonomy:
Alnus maritima (Marshall) Muhl. ex Nutt. subsp. oklahomensis J. A. Schrad. & W. R. Graves
Cultivar:
'September Sun'
Origin:
Collected – Oklahoma, United States
Received by NPGS:
20 Oct 2005
Improvement Status:
Cultivar
Form Received:
Plant
Life Cycle:
Perennial
Life Habit:
Tree
Source History
Collected
15 October 1997.
Oklahoma, United States
Locality: Blue River watershed approximately 8.0 miles northeast of Tishomingo, Johnston County
Coordinates: 34.3334, -96.5951 (Map it)
Habitat: Wild Habitat

Collector(s):
Donated
20 October 2005.
Iowa, United States

Donor(s):
Accession Group(s)
Group name: NC7.Regional.Ornamental.Plant.Trials
Note: Accessions distributed through the NC-7 Regional Woody Ornamental Trials.
To search for accessions in this group, click the following link. NC7.Regional.Ornamental.Plant.Trials

Accession Names and Identifiers
'September Sun'
Type: Cultivar name
Graves, William R. Iowa State University

Ames 27961
Type: Site identifier
Group: AMES
NC-7 Research Numbers

Narrative
Selected from a trial of seedlings af A. maritima subsp. oklahomensis on the campus of Iowa State University, Ames. The seed that formed the original plant was obtained from an open-pollintaed A. maritima subsp. oklahomensis growing on the bank of the Blue River near Tishomingo, Oklahoma. 'September Sun' has been propagated with high rates of success from softwood cuttings by using the methods of Schrader and Graves. Ramets grow rapidly and can be 2 meters tall within 2 years. Suitable for use in USDA hardiness Zone 4a and possibly in areas as cold as USDA Zone 3a. Although the heat tolerance and minimal chilling requirement of this cultivar have not been established, it is native to USDA Zone 7a. Therefore, its useful range includes areas with mean annual minimum temperatures at least as mild as -15 C, and attempts to use 'September Sun' in somewhat milder climates are warranted. Thrives in wet soils, can survive complete inundation of its root zone with fresh water indefinitely, and is more resistant to drought than are other alders cultivated in North America. Should be planted at exposed sites only. Its symbiotic relationship with Frankia, makes 'September Sun' an excellent choice for nitrogen-poor soils. Vigorous plants that remain free of foliar chlorosis in soils exceeding pH 7 have been grown in Iowa. Mature plants are large shrubs or small trees with multiple trunks that form broadly rounded, upright canopies 7 meters tall and 5 meters wide. Trunks support more leaves and axillary shoots than are found on plants of the others subspecies. This leads to dense canopies of glossy leaves that are darker green than the leaves of all other alders indigenous to North America. Leaves display mottled blends of yellow, orange, and rich brown under autumnal conditions in USDA hardiness Zone 5a. The infructescences of 'September Sun' are medium to dark brown, cone-like strobili; each is 16-22 mm long and 11-14 mm in diameter. Strobilimature 1 year after pollination and then persist on the branches through at least one more season, providing subtle ornamental appeal throughout the year. This cultivar differs from other genotypes of its species as the fastest-growing, most densely foliated, and most symmetrically shaped individual observed in field trials with over 1000 plants.
Alnus maritima (Marshall) Muhl. ex Nutt. subspp. oklahomensis J. A. Schrad. & W. R. Graves
Genus:
Alnus
Family:
Betulaceae
Subfamily:
Betuloideae
Nomen number:

451914
Place of publication:

Castanea 67:398. 2002
Verified:
01/22/2007 by ARS Systematic Botanists.
Other conspecific taxa
Alnus maritima (Marshall) Muhl. ex Nutt. (3 active accession[s])
Alnus maritima (Marshall) Muhl. ex Nutt. subsp. georgiensis J. A. Schrad. & W. R. Graves (0 active accession[s])
Alnus maritima (Marshall) Muhl. ex Nutt. subsp. maritima (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Common names
LanguageNameAlternate namenoteseqCitation
EnglishOklahoma alder  1Schrader, J. A. & W. R. Graves. 2002. Infraspecific systematics of Alnus maritima (Betulaceae) from three widely disjunct provenances. Castanea 67:380-401.
Englishseaside alder  1Schrader, J. A. & W. R. Graves. 2002. Infraspecific systematics of Alnus maritima (Betulaceae) from three widely disjunct provenances. Castanea 67:380-401.
Annotations
Other Links
NC7 Trials Plant Description
Actions
  • Description Of NC7 Ornamental Trials: The NC-7 Regional Ornamental Plant Trials, began in 1954 through the efforts of a small group of dedicated horticulturists under the leadership of Professor S.A. McCrory of South Dakota State College (now University). The north central United States is a region of climatic extremes, and many parts of the region have alkaline soils that developed under grasslands. Because of these conditions, the diversity found in commercially available woody plants adapted to the area is less than that found in most other parts of our nation. The NC-7 Regional Ornamental Plant Trials were started with the ultimate goal of expanding the range of useful plants in the nursery trade. The emphasis in this program has been placed on detailed, long-term evaluations at a broad range of sites rather than on promotion of new plants. The NC-7 Trials rely on a network of horticultural cooperators located at sites scattered across the Central United States. Cooperators establish plantings, observe and evaluate the plants through the seasons, and prepare performance reports one, five, and ten years after planting. These reports are sent to the North Central Regional Plant Introduction Station (NCRPIS) in Ames, Iowa where they are recorded. Because of the broad range of environments found among the trial sites, it is unusual for any particular trial plant to perform well at a majority of the sites, making system-wide releases difficult. However, when plants perform especially well at sites, the NCRPIS Horticulturist assists trial site cooperators in introducing the new plants, with any official releases initiated through the cooperators' institutions rather than through the Plant Introduction Station.
Pathogens
Vouchers
Herbarium specimen
  • Schrader, James, Iowa State University. 16 Jun 2003. Located at ISC - Ada Hayden Herbarium, Iowa State University, Ames, IA. Identifier: J. Schrader 123. Inventory sample: Ames 27961. (original source location known - voucher taken from cultivated specimen growing in Ames, Iowa germinated from original sourced seed).
Citations
  • Graves, W. R. & J. A. Schrader. 2004. 'September Sun' seaside alder, an autumn-blooming shrub native to North America. HortScience 39:438-439. Number of accessions cited: 1
  • Mickelbart, M. V., J. D. Carstens, & M. J. Gosney. 2012. Evaluation of native U.S. shrubs at Purdue. Indiana Nursery Landscape News 75(5):22-24. Number of accessions cited: 7
  • Schrader, J. A. & W. R. Graves. 2000. Propagation of Alnus maritima from softwood cuttings. HortScience 35:293-295. Number of accessions cited: 1
  • Schrader, J. A. & W. R. Graves. 2000. Seed Germination and Seedling Growth of Alnus maritima from its three disjunct populations. HortScience 125:128-134. Number of accessions cited: 1
  • Schrader, J. A. & W. R. Graves. 2002. Infraspecific Systematics of Alnus maritima (Betulaceae) from Three Widely Disjunct Provenances. Castanea 67(4):380-401. Number of accessions cited: 2
  • Schrader, J. A., S. J. Gardner, & W. R. Graves. 2004. Resistance to water stress of Alnus maritima intraspecific variation and comparisons to other alders. Environm. Exp. Bot. 53:281-295. Number of accessions cited: 1
Pedigree