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: 14 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=14 | sources=1 | contradictions=0
Claim Types: description_snippet:4, anecdote_snippet:1, flavor_profile:1, fruit_color:1, growth_habit:1, productivity:1, recommendation_context:1, release_year_reference:1, selection_origin_reference:1, storage_duration:1, taxon_context:1 | Open evidence summary JSON | Open citation drawer JSON
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Baldwin is an Americana plum described in South Dakota station literature as a productive late season variety with dark red fruit under a heavy blue bloom. It was received in 1896 from L. O. Williams of Mills County, Iowa. Station plantings set out that year were reported as very productive, even overbearing. [S1]
The fruit is described as round and regular, with a flat apex, a deep narrow cavity, and a distinct suture line. The skin is thick and somewhat astringent. It is dark red and slightly mottled with dull yellow beneath a heavy bloom. The flesh is dark yellow, pleasantly acid, and rated medium in quality. The pit is semi free and medium sized. [S1]
Baldwin ripened about September 4 to 7 in the South Dakota observations. Sources describe it as only fair in quality, but say it kept well after picking and was likely a good shipper. [S1]
The tree was described as strong, open, and spreading. Eight trees planted in 1896 had overborne by the past season. In 1904, the crop was so heavy that the plums were too small for satisfactory description. That year the fruit was also reported to drop badly before coloring. This suggests a weakness in management or crop load despite heavy bearing. [S1]
The hardiness evidence here is indirect, not a stated zone rating. Baldwin was grown and evaluated by the South Dakota Agricultural Experiment Station under northern Great Plains conditions. That supports it as a plum of regional interest for prairie testing, but this packet does not make a direct zone claim. [S1]
In the broader archive context, Baldwin is placed with the Americana plums rather than Japanese or European types. This matters because the Americana group was central to northern plum growing and breeding across the upper plains, where adaptation, productivity, and shipping value often mattered as much as dessert quality. Baldwin appears to have been remembered less for exceptional eating quality than for performance, keeping ability, and commercial usefulness. [S1]
Summary source basis
This summary currently draws chiefly from Plums in South Dakota, with 1 additional supporting sources linked below.
Featured source descriptions
“Received in 1896 from L. O. Williams, Mills county, Iowa.”
— [1]
“The tree over-bore in 1904 so that the plums ran too small for satisfactory description.”
— [1]
“Form round, regular, apex flat, cavity deep, narrow, suture a line.”
— [1]
“Eight trees planted in 1896 have proven very productive and over-bore the past season.”
— [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 | 14 | 0 | 0 | p10 | Pit semi-free, rounded, thick, medium size.; Flesh dark yellow, flavor pleasant, acid, quality medium.; Surface smooth, dots whitish, minute, many; skin thick, acerb.; Surface dark red with heavy blue bloom, red slightly |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 17 | p10 | description_snippet | Pit semi-free, rounded, thick, medium size. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | flavor_profile | Flesh dark yellow, flavor pleasant, acid, quality medium. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | description_snippet | Surface smooth, dots whitish, minute, many; skin thick, acerb. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | fruit_color | Surface dark red with heavy blue bloom, red slightly mottled with dull yellow. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | description_snippet | Form round, regular, apex flat, cavity deep, narrow, suture a line. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | description_snippet | The tree over-bore in 1904 so that the plums ran too small for satisfactory description. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | growth_habit | Tree strong, of open, spreading habit. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | anecdote_snippet | In 1904 the fruit dropped badly before coloring. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | release_year_reference | Ripe September 4 to 7. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | recommendation_context | Evidently a good shipper. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | storage_duration | Quality fair and keeps long after picking. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | productivity | Eight trees planted in 1896 have proven very productive and over-bore the past season. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | selection_origin_reference | Received in 1896 from L. O. Williams, Mills county, Iowa. | Baldwin, Americana. | page_block:0.90 |
| 17 | p10 | taxon_context | Baldwin is presented as an Americana plum. | Baldwin, Americana. | 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 |
|---|---|---|
| description_snippet | Pit semi-free, rounded, thick, medium size. | 0.90 |
| flavor_profile | Flesh dark yellow, flavor pleasant, acid, quality medium. | 0.94 |
| description_snippet | Surface smooth, dots whitish, minute, many; skin thick, acerb. | 0.90 |
| fruit_color | Surface dark red with heavy blue bloom, red slightly mottled with dull yellow. | 0.93 |
| description_snippet | Form round, regular, apex flat, cavity deep, narrow, suture a line. | 0.92 |
| description_snippet | The tree over-bore in 1904 so that the plums ran too small for satisfactory description. | 0.95 |
| growth_habit | Tree strong, of open, spreading habit. | 0.94 |
| anecdote_snippet | In 1904 the fruit dropped badly before coloring. | 0.93 |
| release_year_reference | Ripe September 4 to 7. | 0.88 |
| recommendation_context | Evidently a good shipper. | 0.91 |
| storage_duration | Quality fair and keeps long after picking. | 0.92 |
| productivity | Eight trees planted in 1896 have proven very productive and over-bore the past season. | 0.95 |
| selection_origin_reference | Received in 1896 from L. O. Williams, Mills county, Iowa. | 0.97 |
| taxon_context | Baldwin is presented as an Americana plum. | 0.98 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||