diff --git a/core/lib/Drupal/Core/Render/Element/Number.php b/core/lib/Drupal/Core/Render/Element/Number.php
index b7b25241260b..561c1334778f 100644
--- a/core/lib/Drupal/Core/Render/Element/Number.php
+++ b/core/lib/Drupal/Core/Render/Element/Number.php
@@ -16,7 +16,6 @@ use Drupal\Component\Utility\Number as NumberUtility;
  * - #step: Ensures that the number is an even multiple of step, offset by #min
  *   if specified. A #min of 1 and a #step of 2 would allow values of 1, 3, 5,
  *   etc.
- * - #size: The size of the input element in characters.
  *
  * Usage example:
  * @code
diff --git a/core/lib/Drupal/Core/Render/Element/Select.php b/core/lib/Drupal/Core/Render/Element/Select.php
index fa2e7377c184..205dad6cc5b4 100644
--- a/core/lib/Drupal/Core/Render/Element/Select.php
+++ b/core/lib/Drupal/Core/Render/Element/Select.php
@@ -59,7 +59,7 @@ use Drupal\Core\Render\Element;
  *   is #required or not.
  * - #required: (optional) Whether the user needs to select an option (TRUE)
  *   or not (FALSE). Defaults to FALSE.
- * - #size: The size of the input element in characters.
+ * - #size: The number of rows in the list that should be visible at one time.
  *
  * Usage example:
  * @code
diff --git a/core/lib/Drupal/Core/Render/Element/Table.php b/core/lib/Drupal/Core/Render/Element/Table.php
index c6c08b106645..481c642fdd9d 100644
--- a/core/lib/Drupal/Core/Render/Element/Table.php
+++ b/core/lib/Drupal/Core/Render/Element/Table.php
@@ -24,7 +24,6 @@ use Drupal\Component\Utility\Html as HtmlUtility;
  *   providing responsive tables.  Defaults to TRUE.
  * - #sticky: Indicates whether to add the drupal.tableheader library that makes
  *   table headers always visible at the top of the page. Defaults to FALSE.
- * - #size: The size of the input element in characters.
  *
  * Usage example:
  * @code