Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 12 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=12 | sources=1 | contradictions=0
Claim Types: productivity:2, recommendation_context:2, anecdote_snippet:1, breeder_reference:1, description_snippet:1, fruit_size:1, release_year_reference:1, taxon_context:1 | Open evidence summary JSON | Open citation drawer JSON
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Van Deman is an Americana plum recorded in the upper Midwest and northern Plains as a large fruited, very productive sort with serious fruit defects. It was originated by H. A. Terry of Crescent, Iowa, from seed of Hawkeye, with 1891 attached to the origin note. [S1] South Dakota sources also show it had fruited locally by 1897, apparently for the first time there in the previous season. [S2]
The cultivar was presented as an American plum selection, not a European prune type. Its recorded parentage is simple: a seedling of Hawkeye. [S1] The surviving origin note does not explain the name Van Deman, but it does place the selection with Terry in western Iowa at the end of the nineteenth century. [S1]
South Dakota descriptions make the fruit sound promising at first: large, borne in full crops, and produced on a good, very productive tree. [S1] The problem was the fruit itself. Reports called it late, said it cracked badly before ripening, and in 1904 added that it also scabbed before maturity. [S1] Because of that combination, the fruit was judged almost worthless despite the tree's heavy bearing. [S1]
The tree appears to have been vigorous and dependable in crop, with one report summarized as "Full crop always." [S1] But that reliability did not translate into practical value because the plums failed before they could mature cleanly. [S1] The South Dakota bulletin does not place Van Deman in the station orchard itself, so the detailed performance remarks come from reported observation rather than a station planting on that page. [S1]
No explicit hardiness zone is given in these sources. The clearest evidence is geographic: Van Deman fruited in South Dakota and was discussed in northern Plains plum testing and recommendation literature, which at least places it in that cold climate trial context. [S1] [S2] The same record also shows that prairie performance was not enough to make it worthwhile, because cracking and scab ruined the crop before maturity. [S1]
Van Deman matters less as a celebrated fruit than as a clear example of what experiment station observers were screening out. It had the productivity and size a grower might want, but not the fruit quality or ripening reliability needed for recommendation. [S1]
Summary source basis
This summary currently draws chiefly from Plums in South Dakota, with 1 additional supporting sources linked below.
Featured source descriptions
“The fruit was described as late and as cracking badly before ripening.”
— [1]
“For 1904, the tree was described as good and very productive.”
— [1]
“Mr. Norby reported 'Full crop always.'”
— [1]
“For 1904, the fruit was said to crack and scab before maturity so as to be worthless.”
— [1]
Direct parent cultivars
Parentage claim text
Derived or downstream cultivar links
Source-story quotations
Taxonomy context: No family-tree context surfaced yet.
Related cultivars mentioned in source context
Zone assertions are structured rows. Hardiness claim text appears in evidence claims and page-linked citations.
| Zone Min | Zone Max | Zone Text | Assertion Type | Outcome | Location | Confidence |
|---|---|---|---|---|---|---|
| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 17 | Plums in South Dakota | unknown | 12 | 0 | 0 | p42 | For 1904, the fruit was said to crack and scab before maturity so as to be worthless.; For 1904, the tree was described as good and very productive.; For 1903, it was described as late, cracking before ripe, and of no va |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 17 | p42 | recommendation_context | For 1904, the fruit was said to crack and scab before maturity so as to be worthless. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | productivity | For 1904, the tree was described as good and very productive. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | anecdote_snippet | For 1903, it was described as late, cracking before ripe, and of no value. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | recommendation_context | Reported as almost worthless because of cracking before ripening. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | description_snippet | The fruit was described as late and as cracking badly before ripening. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | fruit_size | Mr. Norby described the fruit as large. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | productivity | Mr. Norby reported 'Full crop always.' | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | entry_location | Not in the Station orchard. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | release_year_reference | Associated with the year 1891 in the origin statement. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | entry_pedigree | Raised from seed of Hawkeye. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | breeder_reference | Originated by H. A. Terry of Crescent, Iowa. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| 17 | p42 | taxon_context | Listed as Americana. | Van Deman, Americana. Originated by H. A. Terry, Crescent, Iowa, from seed of Hawkeye, 1891. | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| recommendation_context | For 1904, the fruit was said to crack and scab before maturity so as to be worthless. | 0.97 |
| productivity | For 1904, the tree was described as good and very productive. | 0.95 |
| anecdote_snippet | For 1903, it was described as late, cracking before ripe, and of no value. | 0.96 |
| recommendation_context | Reported as almost worthless because of cracking before ripening. | 0.97 |
| description_snippet | The fruit was described as late and as cracking badly before ripening. | 0.98 |
| fruit_size | Mr. Norby described the fruit as large. | 0.95 |
| productivity | Mr. Norby reported 'Full crop always.' | 0.95 |
| entry_location | Not in the Station orchard. | 0.98 |
| release_year_reference | Associated with the year 1891 in the origin statement. | 0.93 |
| entry_pedigree | Raised from seed of Hawkeye. | 0.98 |
| breeder_reference | Originated by H. A. Terry of Crescent, Iowa. | 0.98 |
| taxon_context | Listed as Americana. | 0.99 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||